You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I best serve you today?

USER: I would like to cancel my recent reservation due to heavy rainfall in our place. Will you help me in this?

ASSISTANT: Sure, let me know your good name please?

USER: I am Gary Collins.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, no reservation found with your name to cancel.

USER: Thank you.

ASSISTANT: Thanks for availing us, have a nice day.