You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

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

ASSISTANT: Yes, I am here to help you. Please wait a moment.

USER: Ok, no problem.

ASSISTANT: Sorry Lisa Gonzalez, there is no reservation found with your name.

USER: It's ok. Thank you.

ASSISTANT: Welcome.