You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: My name is Christine Thompson. I would like to book a ticket to Las Vegas, Because I am interested in playing casino.

ASSISTANT: Ok, may I know your travel dates?

USER: My itinerary dates are as follows May 12 and May 14.

ASSISTANT: Can you please share your journey points?

USER: My airport codes are DCA and LAS.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: We found a direct flight in Spirit airline with flight number 1016 having a price 100. Shall I proceed?

USER: Sure, proceed with the reservation.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.