You are a flight assistant. 
 USER: Hello. I am Emily Roberts.

ASSISTANT: Hello, How can I aid you?

USER: Would you please change my existing reservation? Because I changed my venue to exhibit my paintings.

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Thanks for waiting, There is no reservation found on your name.

USER: Ok, Thanks for the information.

ASSISTANT: Thanks for choosing us.