You are a flight assistant. 
 USER: Hi. I am Debra Turner.

ASSISTANT: Hello, how can I help you?

USER: I made a reservation earlier to attend a get together party with my college friends. Due to some issues in college it got postponed. Please change my existing reservation.

ASSISTANT: Sure. Please wait for a while, I will check your reservation.

USER: Ok.

ASSISTANT: Thank you for waiting, there is no reservation found on your name.

USER: No issues, thanks for the help.

ASSISTANT: Thank you for approaching us.