You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: I am Lisa Martinez.

ASSISTANT: Nice to meet you.

USER: I would like to attend my friend marriage at Washington, can you please help me to book a flight ticket from LGA to IAD?

ASSISTANT: Sure, I can help you with that. May I know your travel dates please?

USER: Sure, my travelling dates are Aug 13 and Aug 15.

ASSISTANT: May I know in which class do you prefer to travel?

USER: I am comfortable to travel in any class.

ASSISTANT: Do you have any airlines preference?

USER: No, I don't have any airline preferences.

ASSISTANT: Do you have any specifications regarding departure and arrival time?

USER: My departing time is evening.

ASSISTANT: Please let me know if you have any other specifications.

USER: I need a connecting flight.

ASSISTANT: Ok, please wait for a while.

USER: Sure, take your own time.

ASSISTANT: Spirit airlines is providing a flight on that route with ticket fare of 200 and 1 connection, it's departure time is 21:00 PM and arrival time is 17:00 PM. Shall I proceed for booking?

USER: That's fine for me, please proceed for booking.

ASSISTANT: I have successfully booked you an economy class ticket in flight-1025, have a safe journey.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us, have a nice day.