You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you at this moment?

USER: Owing to an emergency,  I need to cancel my previous flight ticket booking. Can you please help me?

ASSISTANT: Sure, I will help you. Please wait for a moment.

USER: Thank you for accepting my request.

ASSISTANT: May I know your name?

USER: My name is Andrew Edwards.

ASSISTANT: Sorry, there is no reservation existing on your name.

USER: No problem with that one, thank you for checking my reservation.

ASSISTANT: You are welcome, have a nice day.