You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you for today?

USER: Lisa Adams here. I would like to cancel my recent reservation, can you help me with this?

ASSISTANT: I am happy to assist you with your reservation cancellation Lisa.

USER: Sure.

ASSISTANT: I regret to say this Lisa, there are no active reservation with your name to cancel.

USER: That's fine, thanks for your help.

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