You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Lisa Rodriguez.

ASSISTANT: Nice to meet you Lisa. How can I help you today?

USER: My business meeting is cancelled, so I need your help to cancel my recent reservation, can you help me?

ASSISTANT: Sure Lisa, happy to help you. Please wait for a moment.

USER: Ok.

ASSISTANT: Thank you for waiting. Sorry Lisa, no reservation has found under your name.

USER: Thank you for your service.

ASSISTANT: Your welcome. Thank you for reaching us.