You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER:  I am Thomas Lewis want to travel to NY-EWR to attend a live concert from WA-SEA. Can you book a ticket?

ASSISTANT: Sure, we are here to help you. Kindly mention your travel dates.

USER: My travel dates are 12/26 and 12/28.

ASSISTANT: How much can afford for this journey?

USER: I can afford upto 200.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: There is a flight with your requirement, airline is UA with price 600 and single connection. Shall I proceed with booking?

USER: OK, you can poceed.

ASSISTANT: Your booking is done and flight number is 1002.

USER:  Thank you for booking.

ASSISTANT: Thanks for reaching us.