You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Could you please book a ticket to Detroit with a direct flight from Las Vegas?

ASSISTANT: Sure, please provide your itinerary dates.

USER: I want to travel on Mar 29 and return on Mar 31.

ASSISTANT: May I know your airport codes?

USER: I am heading to DTW from LAS.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Frontier airlines with flight 1003 is providing service with a connecting flight and ticket costs you 200 in economy class.

USER: Ok, proceed with the booking.

ASSISTANT: May I know your name?

USER: My name is Anna Scott.

ASSISTANT: Anna Scott, your ticket is confirmed.

USER: Thank you for your assistance.

ASSISTANT: Thank you for choosing us.