You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

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

ASSISTANT: Sure, please give your name.

USER: Myself Thomas Carter.

ASSISTANT: Ok, wait for a while. Sorry, to say there is no reservation available in our database.

USER: Ok, fine thank you for checking.

ASSISTANT: Thank you for approaching us.