You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Edward Martin, help me to change my existing reservation as my business trip has been postponed.

ASSISTANT: Sure, please wait a moment.

USER: Sure.

ASSISTANT: There is no reservation on your name.

USER: Ok, no issues.

ASSISTANT: Thank you.

USER: Thank you for your information.