You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: Can you please help me with changing my recent reservation?

ASSISTANT: Ok, please can I know your name?

USER: My name is Andrew Baker.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Sorry to inform there are no reservation found on your name to amend it.

USER: That's ok, thanks for checking.

ASSISTANT: Thank you for choosing our agency.