You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I want to attend a marriage in Washington. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, can I know the travel dates please?

USER: My travelling dates are Sep 12 and Sep 14.

ASSISTANT: May I know your name please?

USER: My airport codes are LGA and DCA.

ASSISTANT: Ok.

USER: My name is Jeffrey Brown.

ASSISTANT: Do you have any requirements?

USER: I want to return on afternoon.

ASSISTANT: Do you have any connection limit?

USER: I need single connecting flight.

ASSISTANT: Ok, wait a moment please.

USER: Ok, I want to travel in economy class flight.

ASSISTANT: There is a connecting flight in Frontier airline, can I book it?

USER: Please proceed.

ASSISTANT: Your ticket has been booked with flight number 1005.

USER: Thanks for helping me.

ASSISTANT: Thank you for approaching us.