You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I help you?

USER: Kevin Campbell here. I would like to visit Seattle Central Library to gather some information to write a article. Can you help me with booking flight ticket?

ASSISTANT: Sure, I will help you to book a flight. Can you please share me your travelling dates?

USER: My trip dates are on 01/08 - 01/10.

ASSISTANT: Ok, may I know your travelling airport codes?

USER: I want to board from LAs Vegas, NV - LAS, to reach WA - SEA.

ASSISTANT: Please give me a moment.

USER: Ok, take your time.

ASSISTANT: Here, I found a flight for you with single connection. Shall I proceed for booking?

USER: I am happier with that flight, proceed for booking.

ASSISTANT: Your ticket has been booked with flight number 1012 and airline is UA.

USER: Thanks for your excellent help.

ASSISTANT: Welcome.