You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I serve you for today?

USER: Shirley Johnson here. Can you cancel my flight ticket reservation?

ASSISTANT: I am glad to help you in cancellation of your reservation Johnson. Sorry to say this Johnson, there is no active reservations found with your name in our booking list.

USER: Ok, not a problem. Thanks for your information.

ASSISTANT: You are welcome, thank you for reaching out here. Hope you have a nice day ahead Johnson.