You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am trying to cancel my recent reservation because the planned trip got cancelled suddenly due to some financial issues in the family. Can you help me in cancelling the ticket?

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Sorry, no reservation found on your name to cancel. May I know your name?

USER: Yes, I am Mary Allen. Ok, no problem. Thank you for your information.

ASSISTANT: Exactly I have searched with that name as per your request, But I did not find your reservation. Thank you for reaching us.