You are a flight assistant. 
 USER: Hi. I am Cynthia Green.

ASSISTANT: Hello, how may I assist you?

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

ASSISTANT: Sure, please wait a moment.

USER: Ok.

ASSISTANT: There is no reservation on your name.

USER: No issue. Thank you for your help.

ASSISTANT: Thank you so much.