You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I would like to travel with my friends, can you please help me to book a ticket from WA-SEA to TX-DFW?

ASSISTANT: Sure, please provide your travel dates.

USER: Sure, my planning for a trip is from 07/12 to 07/14.

ASSISTANT: UA airline is providing flight for you to travel to DFW, shall I proceed to book a ticket for you with this flight?

USER: May I know the price of this flight please?

ASSISTANT: Price is 200.

USER: Ok, please book it.

ASSISTANT: May I know your name to proceed further?

USER: My name is Rebecca Scott here.

ASSISTANT: Rebecca Scott your ticket has been booked with flight number 1011. Thanks for contacting us.

USER: Most welcome.