You are a flight assistant. 
 USER: Hello. I am Rachel Smith.

ASSISTANT: Hello, how may I assist you today?

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

ASSISTANT: Sure, please wait for a moment.

USER: Sure.

ASSISTANT:  Sorry, no reservation found on your name to cancel.

USER: Ok, no problem. Thank you for your time.

ASSISTANT: Welcome, thank you for reaching us.