You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you now?

USER: I need to cancel my reservation as I am not able to make my trip. Can you help me with that?

ASSISTANT: Sure, I am happy to help you with that.

USER: Thank you for considering my request/.

ASSISTANT: Can I have your good name please to check your reservation status?

USER: Sure, my name is Lisa Martinez.

ASSISTANT: Ok, please wait a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry Lisa Martinez, no reservation has found under your name to cancel.

USER: Not a problem, anyways thank you for the information.

ASSISTANT: Thank you for choosing us, have a good day.