Eye contact:

If the receptionist is busy at something, she could say:
A: Hi , I’ll be with you in a second. Hi , sorry for the wait.
B: no worries , I have a reservation for a single room for two nights.
A: sure , Could I have your last name.
B: it’s.....
A: Alright, I see your reservation here, I just need your passport, and I’ll get you the keys right away. It’s room number 207, second floor, down the hall, on the right hand side.
B: Thanks so much
A: You’re welcome, have a nice stay.