You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I need a to amend my reservation as my meeting venue got changed to another place, can you please help me in changing my reservation?

ASSISTANT: Sure, may I know on what name ticket has been reserved previously?

USER: Please check the reservation on the name of Janet Turner.

ASSISTANT: Ok, please wait. I will check the reservation on your name in the database and revert to you.

USER: Ok, I will wait for your response.

ASSISTANT: Sorry, we couldn't find a reservation on your name to change.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for reaching us, have a pleasant day.