You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: This is Patrick Wilson.

ASSISTANT: Yes, Wilson.

USER: I want to cancel my recent reservation. Can you help me in that?

ASSISTANT: Sure, I can help you with that. Please wait for a while.

USER: Ok.

ASSISTANT: Wilson, there is no reservation found under your name to do cancellation.

USER: Ok, no problem. Thank you for giving information.

ASSISTANT: Thank you for reaching us.