You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know how best I can help you today?

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

ASSISTANT: Sure, I am here to help you. May I know your name please?

USER: Patrick Williams here.

ASSISTANT: Ok, please wait a minute.

USER: Ok.

ASSISTANT: Thank you for your time, we found a reservation on your name and it has been cancelled as per your request.

USER: Ok, thank you.

ASSISTANT: Thank you for reaching us, have a nice day.