You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

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

ASSISTANT: Sure, please wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting, no flight reservation found with your name.

USER: No issue. Thank you.

ASSISTANT: Thank you for opting us.