have a reservation or have reservations

[duiter]

Dear all,

Which one is more natural to say have doubt ?

have a reservation or have reservations

Many thanks

[Raymott]

Dear all,

Which one is more natural to say have doubt ?

have a reservation or have reservations

Many thanks

In what contex ... er never mind.

If you talking about a restaurant, you only need one reservation for a group - You make one reservation for a table.
In a train, it would be more common for each person to have a reservation. One reservation for each seat.


"I have reservations about how much to expect from posters." This would be more natural than "have a reservation".
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Restaurant Patron: May we have a table for four?
Waiter: Do you have reservations?
Patron: Several, but we thought we'd try your place anyway.

[JohnParis]

I have a reservation for a patio table at 8:00 pm.
I have reservations about recommending you for the job.

Now, I suspect you're probably talking about something similar to my first example. A restaurant, a hotel, or a spa perhaps? But since I have no context to base my answer on, I can't say for certain. If my hunch is correct, then the two can be used interchangeably most of the time. The only time I would definitely say "reservations" is if we were a party of 30 checking into a hotel, or a flight for an airline or a restaurant. But that is just me - there is really no obligation. You, as the speaker of the couple or the group, could use either.