You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Thomas Scott.

ASSISTANT: How may I assist you?

USER: Due to some emergency, I need to postpone my meeting to some other dates. Can you please change my existing reservation?

ASSISTANT: Sure, I am here to help you. Please hold on a moment.

USER: Sure, make it fast.

ASSISTANT: Thomas, no reservation has been found on your name in our database.

USER: It's ok, no issues. Thank you for the information.

ASSISTANT: Thank you for approaching us.