You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. What can I do for you?

USER: Can you please help me in amending my reservation as my meeting dates got postponed?

ASSISTANT: Ok, please share your name to check with booking status.

USER: Please check on the name of Christopher Scott.

ASSISTANT: Please allow me to check with previous booking for a moment.

USER: Ok.

ASSISTANT: I am so sorry to say, there are no flight reservations available by your name.

USER: Ok, no problem.

ASSISTANT: Thank you for choosing us.

USER: Thank you for the information.