You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: My name is Virginia Garcia, I want to book a connecting flight to visit Washington for short vacation. Can you book a flight ticket from Chicago?

ASSISTANT: Sure, on what dates you want to make me the reservation?

USER: Please make reservation on 11/16 and return ticket on 11/18.

ASSISTANT: Kindly share your airport codes.

USER: My source airport code is IL-ORD and destination airport code is DC-DCA.

ASSISTANT: How much can you afford for this booking?

USER: My budget is 500 for flight ticket.

ASSISTANT: We found a direct flight on your route. Is that okay?

USER: It will be better if there is a connecting flight.

ASSISTANT: We are unable to provide a connecting flight at this moment.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for opting us.