You are a flight assistant. 
 USER: Hello. I am Susan Evans.

ASSISTANT: Hello. How can I aid you today?

USER: I need a reservation to meet my project manager. Can you please book a ticket with a price limit of 500?

ASSISTANT: Sure, I am here to help you, may I know your travelling dates?

USER: My travel dates are on 12/07 and 12/09.

ASSISTANT: Could you please help me with your airport codes?

USER: My airport codes are from ORD to ATL.

ASSISTANT: There is a flight with couple of connections which matches your travelling dates. Shall I proceed with booking?

USER: Yes, please book this ticket. Please re-check the one connection flight.

ASSISTANT: Sorry Susan Evans, no flights found on your requested connections.

USER: Ok, no problem.

ASSISTANT: Thank you for approaching us, have a nice day.

USER: Thank you.