You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you?

USER: As my adventure tour with my friends has been postponed, help me in changing my reservation.

ASSISTANT: Ok, I can help you with that.

USER: Larry Phillips here.

ASSISTANT: May I know your name to check the current status and revert you? Thank you. Unfortunately there is no reservation found on your name.

USER: No problem, thank you for your assistance.

ASSISTANT: Thank you for choosing us.