You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, what can I do for you?

USER: Please book a ticket from Las Vegas, NV-LAS to Seattle, WA-SEA, for science festival.

ASSISTANT: Ok, please share your price limit.

USER: Ticket price limit is 200.

ASSISTANT: Ok, kindly mention your journey dates.

USER: 04/03 to 04/05 are my journey dates.

ASSISTANT: May I know your name please?

USER: My name is Gary Roberts.

ASSISTANT: Ok Gary Roberts, we are glad to inform you that we found a flight in UA airlines with a halt and the fare is 100.

USER: Please book a ticket.

ASSISTANT: Sure, your ticket has been confirmed.

USER: Please let me know flight number?

ASSISTANT: Ok, your flight number is 1011.

USER: Thanks.

ASSISTANT: Thanks for choosing us.