You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I want to cancel my recent reservation due to sudden change in my trip.Can you help me?

ASSISTANT: Sure, I am here to help you, may I know your name for cancelling?

USER: I am Jessica Turner.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Sorry, no reservation found on your name.

USER: That's Fine.

ASSISTANT: Thank you for approaching us.

USER: Thanks for the information.