You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,.

USER: My name is David Carter.

ASSISTANT: How shall I help you?

USER: I would like to attend my neighbour wedding reception at New York.

ASSISTANT: Ok.

USER: Can you help me, To book a ticket from Washington, DC - IAD to New York, NY - EWR?

ASSISTANT: Sure.

USER: My price limit for the ticket is 5000. My connections limit has to be 1.

ASSISTANT: May I know your travelling dates?

USER: My travel dates are from 11/21 to 11/23.

ASSISTANT: Flight ticket is available with airline: Hawaiian, price 200. Flight number 1000 with connections 1.

USER: Please, Book the ticket.

ASSISTANT: Ticket is booked.

USER: Thank you, For helping me to book a ticket.

ASSISTANT: Thanks.