You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I oblige you today?

USER: I am Stephanie Carter.

ASSISTANT: Ok.

USER: My business meeting was postponed to another location, so help me in changing my reservation.

ASSISTANT: Sure, please wait a minute.

USER: Ok.

ASSISTANT: Thank you for waiting, no reservation was found on the name of Stephanie Carter.

USER: No problem, thank you for your service.

ASSISTANT: Thank you for reaching us.