You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you today?

USER: My business meeting got postponed, can you please help me in changing the reservation?

ASSISTANT: Ok, I will help you with that.

USER: Thank you.

ASSISTANT: Can I know your name?

USER: I am Samuel Jones.

ASSISTANT: Sorry to inform you that, there is no reservation found on your name in our database.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for approaching us.