Hi. Katherine Taylor here.
Hello, how may I support you today?
I am looking for a economy class flight for my holiday trip to Washington. So can you book a flight ticket for me?
Sure, can you provide your travel dates?
The trip dates are from 21 May to 23 May.
Can you share your airport codes?
The airport codes are from LGA to DCA.
Is there any connection limit do you have?
I need a single connecting flight.
Do you need a business or economy class?
I need a economy class.
Do you have any other specifications to be met?
No.
Please wait a moment. We found a connecting flight with cost 100 in United Airlines. Can I book the ticket with that?
Sure. You can book  it.
Your booking is done with flight number 1017.
Thank you.
Thank you for reaching us.