You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I serve you?

USER: I want to cancel my recent reservation. Can you help me?

ASSISTANT: Sure, may i know your name to check the list and revert you?

USER: I am Kathleen Roberts.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for waiting, we could not find any reservation by this name.

USER: Ok, thanks for helping me.

ASSISTANT: Thank you for approaching us.