You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I want to cancel my recent reservation, Can you please help me in that?

ASSISTANT: Sure, may I know your name.

USER: My name is Dennis Walker.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry, no active reservations on your name to cancel.

USER: Ok, that's not a problem.

ASSISTANT: Thank you for reaching our service.

USER: Thanks for your information.