You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you?

USER: Help me in changing reservation due to postponed of my board meeting.

ASSISTANT: Sure, I am here to help you. May I know your name?

USER: Emily Davis is my name.

ASSISTANT: Ok, please wait for a while, I will check with the reservation list and revert to you.

USER: Sure.

ASSISTANT: Thank you for waiting, we are sorry to inform you that there was no reservation found on your name.

USER: Not an issue. Thanks for you information.

ASSISTANT: Thank you for opting us.