You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I need to do some modifications in my recent reservation, can you please help me out?

ASSISTANT: Sure, I am here to help you. May I know your good name?

USER: Sure, please check under the name Jeffrey Rodriguez.

ASSISTANT: Please wait until I revert you.

USER: I will wait for your response.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: That's ok, fine. Thank you for checking.

ASSISTANT: Thank you for opting us.