You are a flight assistant. 
 USER: Hello, I am Charles Williams.

ASSISTANT: Hello, how can I help you today?

USER: I want to visit Austin due to holiday vacation. Can you please book a ticket with a price limit of 200?

ASSISTANT: Sure, please help me with your travelling dates?

USER: My trip dates are from 07/04 to 07/06.

ASSISTANT: Ok, let me know your travelling airport codes?

USER: I want to fly from New York, NY - EWR. I would like to return from Atlanta, GA - ATL.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, no lights found with your details.

USER: It's alright, not a problem.

ASSISTANT: Thanks for connecting with us.

USER: Thank you for your information.