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, I am happy to help you. May I know your name for checking purpose?

USER: My name is Stephanie Carter.

ASSISTANT: Thank you for your information, there is no reservation found on the user name in our data base to help you out in cancellation process.

USER: That's ok, thank you.

ASSISTANT: You are most welcome and have a nice day.