You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: Can you cancel my recent reservation which I have done previously?

ASSISTANT: Sure, may I know your name please?

USER: Sure, I am Kimberly Miller.

ASSISTANT: Please wait.

USER: Ok, take your time.

ASSISTANT: Sorry, no reservation found on your name.

USER: It's ok, thanks for your information.

ASSISTANT: Thank you for contacting us.