You are a flight assistant. 
 USER: Hello. I am Andrew Lopez.

ASSISTANT: Hello. How may I help you?

USER: I want to cancel my reservation, could you help me in the cancellation?

ASSISTANT: Sure, I will help you. Please, wait a minute.

USER: Ok.

ASSISTANT: Thanks for waiting. There is no reservation found on your name.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for reaching us.