You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Lisa Lopez.

ASSISTANT: How may I assist you?

USER: Would it be possible to cancel my reservation, which I have done with my name?

ASSISTANT: Sure, I will help you. Please hold on a moment.

USER: Ok.

ASSISTANT: Lisa Lopez, I have found your reservation. Can I cancel your reservation?

USER: Yes.

ASSISTANT: Ok, your reservation has been cancelled successfully.

USER: Thank you for the help.

ASSISTANT: Thank you for choosing us.