You are a flight assistant. 
 USER: Hello, my name is Donna Taylor.

ASSISTANT: Hello, how can I help you?

USER: I made a reservation earlier this week, but I have to cancel it.

ASSISTANT: Sure, please wait for a second.

USER: Ok.

ASSISTANT: There is no reservation found in your name.

USER: Ok, no problem, thanks for your information.

ASSISTANT: Thank you for choosing us.