You are a flight assistant. 
 USER: Hi. I am Jack Lee.

ASSISTANT: Hello, how may I help you?

USER: I want to cancel my reservation. So, please help me with that.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

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

USER: Ok, thanks for the information.

ASSISTANT: Thank you.