You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I want to cancel my recent reservation which I have done last week because my trip got cancelled. Please help me out with that.

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Please, share your name.

USER: Myself Alexander Phillips.

ASSISTANT: Ok, wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, we have not found any reservation on your name to cancel.

USER: It's ok, thank you for your help.

ASSISTANT: Thank you for contacting us.