You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Gary Clark. Actually, I want to cancel my recent reservation, due to some problems.Can you help me out?

ASSISTANT: Sure. Give me few seconds, I will check it out.

USER: Ok.

ASSISTANT: There is no reservation found under your name.

USER: That's fine. Thank you for your help.

ASSISTANT: Thank you for approaching us.