You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you today?

USER: I am Lisa Evans. I would like to cancel my recent reservation, which I was done at last week. Can you please help me out?

ASSISTANT: Please wait, I will get back to you.

USER: Ok, I will wait for your response.

ASSISTANT: Sorry Lisa, no reservation found under your name.

USER: Ok, fine not an issue. Thank you for your help.

ASSISTANT: My pleasure, have a good day.