You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Debar Thompson, I want to cancel my flight ticket. Can you assist me?

ASSISTANT: Ok, please wait for a moment.

USER: Ok, I will wait for the reply.

ASSISTANT: Sorry, there is no reservation found by your name.

USER: That's ok, may be it is been cancel before, I will check the mail. Thank you for the informetion.

ASSISTANT: Thank you and have a nice day.