You are a flight assistant. 
 USER: Hello, I am Catherine Lewis.

ASSISTANT: Hello, how can I assist you today?

USER: I want to attend arts and crafts festival with my friends in Washington, can you help me with reservation.

ASSISTANT: Sure, may I know your journey dates?

USER: OK, my depart is on 01/18 and return on 01/20.

ASSISTANT: May I know your price limit?

USER: I need price under 200.

ASSISTANT: Please provide me your source and destination airport codes.

USER: Sure, my source is MCO and destination is DCA.

ASSISTANT: May I know your connections limit?

USER: Flight has to be with single connection.

ASSISTANT: Please wait for a moment, I will check and get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting, I found a Southwest airline, price: 100 with one connection.

USER: OK, proceed with it.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you, for the help.

ASSISTANT: Thanks for choosing us.