You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you aid me to cancel my reservation due to emergency?

ASSISTANT: Sure, I will help you with the flight ticket cancellation. Please wait. May I know your name please?

USER: Melissa Brown here.

ASSISTANT: Wait for a moment please.

USER: Thank you for the response. Ok.

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

USER: Thank you for the help.

ASSISTANT: Thank you.