You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, is there any help that you are looking from our agency?

USER: Yes. I have planned to go for mountain park in Denver but I am not  interested to go for Denver, can you please cancel my recent reservation?

ASSISTANT: Sure, I will help you. May I know your name for finding your booking in our data sheet?

USER: My ticket was reserved in the name of Melissa Hill.

ASSISTANT: Hill, I found your booking in our data sheet.

USER: Ok, please cancel my ticket.

ASSISTANT: Based on your request the ticket has cancelled and you will get a confirmation message.

USER: Ok, thank you for your help.

ASSISTANT: Thank you for your time in reaching us. Have a great day.