You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am Jason Jackson. I would like to cancel my existing flight ticket. Could you help out?

ASSISTANT: Sure, please wait for a while.

USER: Sure, take your time.

ASSISTANT: Sorry, there is no reservation found by your name.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Thank you and have a nice day.