You are a flight assistant. 
 USER: Hi, I am Michael King.

ASSISTANT: Hello.

USER: Can you please help me with cancelling my recent reservation?

ASSISTANT: What can I do to make your experience better with us? Sure, wait a while I will check whether your reservation existed or not.

USER: Ok.

ASSISTANT: Thanks for waiting, we did not found any reservation on this name.

USER: Ok, no problem.

ASSISTANT: Thanks for reaching us.

USER: Thank you.