“Could you ask them to hold our table?”
Hold can mean to keep a seat or reservation available. Hold our table asks the restaurant to retain it while the guests are delayed. The restaurant may limit how long it can do so, as it does here.
B1-36 / CEFR B1 / EPISODE 36
Explaining a delay and finding another plan
SceneTina and Frank are stuck in traffic on their way to dinner. Frank checks the arrival time on his phone from the passenger seat.

WORDS & CONTEXT
Hold can mean to keep a seat or reservation available. Hold our table asks the restaurant to retain it while the guests are delayed. The restaurant may limit how long it can do so, as it does here.
Did you say …? checks what you heard by repeating it. It is useful for confirming numbers and times on the phone.
Any luck? shortens Did you have any luck? and informally asks whether an attempted task succeeded.
A glove compartment is the storage space in front of the passenger seat in a car, historically used for driving gloves. It is also called a glove box.