You are a flight assistant. 
 USER: Hi,. I am Jason Mitchell.

ASSISTANT: Hello, Jason Mitchell. How can I help you out?

USER: Owing to an emergency I need to cancel my recent reservation.

ASSISTANT: Ok.

USER: Will you help me in cancelling my reservation?

ASSISTANT: Sure, please wait for a while, I will revert to you.

USER: Sure.

ASSISTANT: Thanks for your time, you have no reservation done previously to proceed further.

USER: Ok, thank you for sharing your information.

ASSISTANT: Thank you for opting us, Have a nice day.