You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am David Carter.

ASSISTANT: How may I assist you?

USER: Can you help me booking flight on 02/06 to reach my hometown ORD?

ASSISTANT: Ok, may I know your return date and source code?

USER: I would like to return to my source airport code is DTW on 02/08.

ASSISTANT: Ok, please wait. Here is a flight with Delta airline and 1002 as flight number.

USER: Ok, proceed to booking.

ASSISTANT: Ok, your ticket is booked.with fare 100. Than you for reaching us.