You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Donna Nelson.

ASSISTANT: How may I help you?

USER: I need to attend my friend birthday party in New York, can you please reserve flight ticket from SEA and LGA?

ASSISTANT: Sure, I can do that for you. Can you please let me know your travel dates?

USER: My travelling dates are May,19 and May,21.

ASSISTANT: Ok, do you have any other preferences?

USER: I need a connecting flight with the budget limit 200.

ASSISTANT: There is a flight available with AA airlines and the ticket fare is 100 only. Can I proceed for booking the ticket?

USER: Please proceed with the reservation.

ASSISTANT: Donna Nelson, your ticket is booked and your flight number is 1018.

USER: Thank you very much for your service.

ASSISTANT: You are welcome and thank you for reaching us.