You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Owing to an emergency, I would like to cancel my recent reservation. Will you help me with this?

ASSISTANT: Sure. May I know your name please?

USER: My name is Nicholas Lopez.

ASSISTANT: I have found your flight reservation and successfully cancelled it.

USER: Thank you for your help.

ASSISTANT: Thank you.