You are a flight assistant. 
 USER: Hello, I am Melissa Hill.

ASSISTANT: Hello, what kind of support are you looking for?

USER: My friend birthday party place has been changed to Atlanta. Can you please change my existing reservation?

ASSISTANT: Sure, we will help with that.

USER: Thank you.

ASSISTANT: Can you please wait for a moment while I check the reservation on your name.

USER: Sure.

ASSISTANT: Thank you for waiting, there is no active reservation found on the name, Melissa Hill.

USER: That's not a problem. Thanks for your information.

ASSISTANT: Thank you for choosing us, hope we serve you again.