You are a flight assistant. 
 USER: Hi. I am Virginia Martin.

ASSISTANT: Hello, how can I address you?

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

ASSISTANT: Sure, I am willing to help you.

USER: Ok.

ASSISTANT: Please stand by I will get back to you.

USER: Sure.

ASSISTANT: Thanks for your time, sorry to say no reservation found on your name.

USER: No issue.Thank you for the information.

ASSISTANT: Thank you for choosing us, have a nice day.