You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Tell me how can I assist you?

USER: My name is Stephen Baker. As my interview got postponed, I would like to change my reservation.

ASSISTANT: Sorry no reservation found on your name.

USER: Ok, thank you for your information.

ASSISTANT: Do you need any other help from my side.

USER: No, thank you.

ASSISTANT: Thank you for contacting us.