You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I want to cancel my recent reservation, can you please help me out? Sure, my name is Lisa Gonzalez.

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

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

USER: It's ok, thank you for the information.

ASSISTANT: Welcome, thank you for reaching us.