You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Lisa Gonzalez here.

ASSISTANT: Please can I know your concern to assist?

USER: I would like to cancel my recent reservation due to my friend marriage is cancelled.

ASSISTANT: Yes, I will be glad to solve your concern. Please wait a moment to check the records.

USER: Ok, take your time.

ASSISTANT: Thank you for waiting for my response, the reservation which you have asked for had been found. The reservation is been cancelled as per your request.

USER: Thank you for cancelling my reservation.

ASSISTANT: Thank you for connecting with our agency.