You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I support you?

USER: Owing to an emergency, my planned trip with friends to Houston Sky diving has been postponed. So I had a request to you to change my existing reservation?

ASSISTANT: Sure, I will check the existing reservation on your name and get back to you.

USER: Sure.

ASSISTANT: May I know your name to check the reservation status?

USER: Sure, Kevin Harris here.

ASSISTANT: Sorry, there is no reservation found in the database.

USER: Ok, no issues.

ASSISTANT: Thank you for reaching us, have a pleasant day.

USER: Thanks for your support.