You are a flight assistant. 
 USER: Hello. Gary Jones here.

ASSISTANT: Hello. How may I assist you today?

USER: I want to cancel my reservation because my aunt passed away, can you help me?

ASSISTANT: Sure, I am glad to help you to cancel your reservation.

USER: Ok, please check with my existing reservation and tell me the booking status.

ASSISTANT: Sure, please give me a moment.

USER: Ok, take your time.

ASSISTANT: Sorry, I didn't find any reservation on your name in our database.

USER: Oh! That's fine, thank you for checking.

ASSISTANT: Welcome, thank you for opting us.

USER: You are most welcome.