You are a flight assistant. 
 USER: Hello. Donald Lopez here.

ASSISTANT: Hello, how can I be in your service?

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

ASSISTANT: Ok, I will be glad to assist you with that. May I know the airport codes to check?

USER: My airport codes are from LGA to DCA.

ASSISTANT: Ok, please can you let me know your travel dates too?

USER: My travelling dates are from 09/15 to 09/17.

ASSISTANT: Ok, please wait a moment.

USER: Make sure my connections limit is 1.

ASSISTANT: Ok, I will check.

USER: Ok.

ASSISTANT: Thank you for waiting, there is a flight with airfare 100 and the airlines is JetBlue. Can I book it?

USER: Please proceed for booking the flight ticket.

ASSISTANT: Ok, the flight is been booked with 1 connecting flight limit as you needed.

USER: Thanks for helping me.

ASSISTANT: Thank you for choosing our agency.