You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I help you?

USER: Owing to a emergency I want to cancel my recent reservation.

ASSISTANT: Sure, May I know your name?

USER: Can you help me in cancelling my reservation? I am Patricia Jones.

ASSISTANT: Please wait for a while, I will check and get back to you.

USER: Sure.

ASSISTANT: Sorry to tell that there is no reservation on your name.

USER: Ok, no problem.

ASSISTANT: Thank you for approaching us.

USER: Thank you for helping me.