You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I want to cancel my recent reservation, can you please help me out?

ASSISTANT: Let me know your name.

USER: Sure, my name is Cynthia Lee.

ASSISTANT: Sorry, no reservation found by your name.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you.