You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Due to some financial issues, I would like to cancel my recent reservation. Please help me out.

ASSISTANT: Sure, may I know your name?

USER: My name is Mark Gonzalez.

ASSISTANT: Ok, please wait a minute.

USER: Sure, take your time.

ASSISTANT: Sorry Mark, there is no active reservation found under your name in our records.

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

ASSISTANT: Most welcome.