You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: One of my patient got severe heart attack, so I have to take care of my patience and I am unable to travel the trip. Can you please help me in flight ticket cancellation process?

ASSISTANT: Sure, we are here to help you.

USER: Thank you so much.

ASSISTANT: Could you please provide me your name to check the reservation status?

USER: My name is Edward Thompson.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, unfortunately there is no reservation found by this name.

USER: No issues with that, I think while making a reservation it is not booked properly. Anyways, thank you for your search and providing the information.

ASSISTANT: Thank you for approaching us.

USER: Welcome.