You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I support you today?

USER: I want to cancel my reservation, can you help me with that?

ASSISTANT: Sure, may I know your name please?

USER: Sure, Edward Johnson.

ASSISTANT: Please wait a moment I'll check the reservation list.

USER: Sure.

ASSISTANT: Sorry, there is no active reservation have been found under your name in our database to cancel it.

USER: Ok, no issues.

ASSISTANT: Thank you for availing us.

USER: Thank you for helping me.