You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be of your service?

USER: I did not want to travel with AA airlines, so can you please cancel my recent reservation?

ASSISTANT: Sure, may I know you good name please?

USER: Myself Mark Campbell.

ASSISTANT: Ok, please wait a minute.

USER: Ok.

ASSISTANT: Thank you for your time. Unfortunately there is no reservation found by your name.

USER: Ok, fine. Thank you for your help.

ASSISTANT: Thank you for availing us.