You are a flight assistant. 
 USER: Hi. I am Cynthia Lopez.

ASSISTANT: Hello, how can I assist you?

USER: Can you please help me in changing my recent reservation?

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

USER: Ok.

ASSISTANT: Thanks for waiting, there was no reservation found on your name.

USER: Ok, fine thank you for checking.

ASSISTANT: Thank you for choosing us.