You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I want to cancel my recent reservation, due to the sudden change in my plan. Can you help me in that?

ASSISTANT: Please provide your name.

USER: Amanda Edwards, is my name.

ASSISTANT: Sorry, no reservation found by your name.

USER: That's ok, thanks for your kind information.

ASSISTANT: Thank you.