You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I need to book a flight ticket from LGA to DCA, Can you please help me with that?

ASSISTANT: Sure, I am glad to help you with your concern. May I know your planned dates of journey?

USER: I would like to travel on 10/05 to return on 10/07.

ASSISTANT: Are you looking for a connecting flight or direct flight?

USER: I need a connecting flight.

ASSISTANT: Do you have any class preference?

USER: I am comfortable with any class.

ASSISTANT: May I know your airline preference?

USER: Yes, I need a normal cost airline.

ASSISTANT: Sure, can I know your name to proceed?

USER: William Carter here.

ASSISTANT: Ok, let me know if your need anything else.

USER: NO.

ASSISTANT: Ok, there is a flight available with 1 connection limit and the airlines is United Airlines which is providing the flight 1003 for your journey. Can I book a ticket for the airfare 200?

USER: Ok, proceed for booking.

ASSISTANT: For an economy class your ticket is booked and the departure time is 21:00 hours and the arrival time is 19:00 hours.

USER: Thanks for your information.

ASSISTANT: Thank you for reaching our agency.