You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Please let me know is there any chance to cancel my recent reservation, as my health is not good to travel.

ASSISTANT: Yes, there is a chance, can I know your name?

USER: Sure, I am Jeffrey Williams.

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

USER: That's fine.

ASSISTANT: Thank you for connecting us.

USER: Thank you for your time.