You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Due to some issues, I want to cancel my recent reservation. Please help me out.

ASSISTANT: May I know your name?

USER: My name is Elizabeth Adams.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for opting us.