You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you ?

USER: Please cancel my previously booed ticket as budget was very high for my planned trip. Please help me.

ASSISTANT: Sure, may I know your good name?

USER: I am Donna Hall.

ASSISTANT: Thank you for providing your name, we found a reservation with your name. Shall I go with cancellation?

USER: Yes, Please.

ASSISTANT: Your ticket has been cancelled.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.