You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I want to cancel my existing reservation, which is done recently. Can you please help me out?

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

USER: Sure, please check the reservation under the name of Christine Williams.

ASSISTANT: Ok, please wait for a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for waiting, There was no reservation found on your name to cancel it.

USER: Not an issue, anyway thank you for the information.

ASSISTANT: Thank you for choosing us.