You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know your name please?

USER: Cynthia Robinson is my name.

ASSISTANT: Thanks for your name. What can I do for you?

USER: As my painting exhibition has been postponed. So I need to change my reservation. Can you please help me in changing my reservation?

ASSISTANT: Sure, we will aid you. Please give me a moment.

USER: Ok.

ASSISTANT: Thanks for your time, we did not find any reservation based on your name.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thanks for picking us.