You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you with today?

USER: Myself Stephanie Brown. As of sudden my trip has been postponed, could you change my reservation?

ASSISTANT: Sure, I can help you with that.

USER: Ok.

ASSISTANT: Please allow me a moment to check the details for you. Stephanie, I have checked and see that there is no reservation found under your name.

USER: It's fine. Thank you for your help.

ASSISTANT: You are welcome. Thank you for contacting us.