You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I serve you?

USER: Can you cancel my recent reservation?

ASSISTANT: Sure, may I know your name please?

USER: Ok, I am Donald Garcia.

ASSISTANT: Please wait for a while.

USER: Take your time.

ASSISTANT: Thanks for your time, there is no active reservation found in your name.

USER: That's ok, thanks for checking.

ASSISTANT: Thank you for choosing us.