You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Jessica Anderson here.

ASSISTANT: How can I assist you today?

USER: I am looking for a flight ticket with price below 1000. Can you book it?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: My preferable dates for travel are 12/13 to 12/15.

ASSISTANT: Please provide your airport codes that you want to travel.

USER: My airport codes for boarding the flight are LGA to DCA.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, there is a flight with price 100 and the connections 0 is available. Shall I confirm your ticket?

USER: I am fine with the fare. You can book the flight ticket.

ASSISTANT: Your ticket is booked. The flight number is 1022 and the airline is UA.

USER: Thank you.

ASSISTANT: Welcome, have a great day.