You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you out?

USER: Can you please help me in booking from DEN to DTW?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My travelling dates are from Jan 20 to Jan 22.

ASSISTANT: Can I know your name please?

USER: My name is Barbara Wilson.

ASSISTANT: Do you need any specifications?

USER: I need a connecting flight.

ASSISTANT: Can I know your other preferences?

USER: I don't have any other preferences.

ASSISTANT: There is a direct flight with economy class and flight number 1003, can I proceed?

USER: Ok, proceed.

ASSISTANT: Ok, your ticket has been booked with flight number 1003.

USER: Thank you.

ASSISTANT: Thank you for reaching us.