You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Please cancel my previously booked ticket. As budget was very high for our planned trip and we are not able to arrange our budget, so can you help me in cancelling my reservation?

ASSISTANT: Sure, may I know your name?

USER: My name is Carol Lopez.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: Your ticket has been cancelled successfully.

USER: Ok, thank you for your help.

ASSISTANT: Most welcome.