You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you now?

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

ASSISTANT: Yes, may I know your name?

USER: Myself Jason Roberts.

ASSISTANT: Please wait.

USER: Ok.

ASSISTANT: I am sorry to say, there is no reservation by your name.

USER: Thank you for checking.

ASSISTANT: Thank you for choosing us.