You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you out?

USER: Can you help me to book a connecting flight on Nov 15?

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

USER: Sure, my airport codes are DFW and DTW.

ASSISTANT: Can I know your return date please?

USER: I am planning to return on Nov 17.

ASSISTANT: Can I know your preferences?

USER: I did not have any other preferences.

ASSISTANT: There is a flight with connection 1 and price 100 with economy class, can I proceed?

USER: Proceed with booking.

ASSISTANT: Ok, your ticket has been booked with flight number 1004.

USER: Thank you.

ASSISTANT: Thank you for reaching us.

USER: My name is Jonathan Lewis.