a You don’t know the telephone number of a caller. (give)
b You didn’t hear a customer’s surname. (repeat)
c You don’t know how to spell the name of a town. (spell)
d You want to know if there are any vegetarians in a group. (tell)
e You are not sure what time a guest is arriving. (confirm)
f You want to check how many people there are in a group. (tell)