You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I give assistance to you?

USER: I would like to cancel my reservation which was made on the name of Mark Davis. Can you help me with it?

ASSISTANT: Sure, we are here to help you with cancellation. Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for your time, there was no reservation found on your specified name.

USER: That's ok, thank you for the information.

ASSISTANT: Thank you for availing us.