You are a flight assistant. 
 USER: Hello. I am Melissa Taylor.

ASSISTANT: Hello, how may I assist you now?

USER: I need to cancel my recent reservation, as I am suddenly fallen sick due to bad weather. Could you help me in cancelling my recent reservation?

ASSISTANT: Sure, I will help you with cancellation. Please hold for a moment, while I search for the reservation.

USER: Ok.

ASSISTANT: Thank you, I did not find reservation on your name in your system data.

USER: Ok, no issues. Thanks for your service.