You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: My name is George Edwards, and I would like to change my existing reservation.

ASSISTANT: Sure, please wait I will let you know in a moment.

USER: OK.

ASSISTANT: There is no reservation found on your name.

USER: Thank you, for your information and support.

ASSISTANT: Thank you for contacting us, have a great day.