You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Lisa Lee here. Please help me out in cancelling my recent booked ticket.

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

USER: Thank you a lot.

ASSISTANT: Please wait a moment to check your reservation status.

USER: Sure.

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

USER: No issues, thank you for your information.

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