You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you today?

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 with this?

ASSISTANT: Sure, I am here to help you. May I know your good name?

USER: Sure, my name is Dorothy Collins.

ASSISTANT: Ok, please give me a minute.

USER: Sure.

ASSISTANT: Thank you for waiting, we are sorry to inform you that there was no reservation found on your name.

USER: Ok, not an issue. Thanks for your information.

ASSISTANT: Thank you for choosing us.