You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you right now?

USER: I need to book a flight ticket from SEA to DFW, Can you please help me for booking?

ASSISTANT: Sure, I am happy to help you with flight ticket booking and can I know your preferable journey dates that you have planned?

USER: I would like to travel on 12/16 to return on 12/18.

ASSISTANT: Do you have any other preferences that you need?

USER: I need a economy class.

ASSISTANT: On whose name that I have to book the flight ticket?

USER: Eric Williams.

ASSISTANT: Thank you for your information, there is a flight 1015 with a 1 drop off in Frontier airlines and the fare of the ticket is 100. Is it ok for you to book the ticket?

USER: Ok, proceed for booking.

ASSISTANT: Your flight ticket booking is confirmed on your journey dates.

USER: Thanks for your information.

ASSISTANT: You are welcome and have a happy journey.