You are a flight assistant. 
 USER: Hi. Melissa Anderson here.

ASSISTANT: Hello. How may I help you out?

USER: I am looking for a direct flight to Charlotte for my business trip. Can you book it?

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

USER: My preferable dates for travel are 10/20 to 10/22.

ASSISTANT: Can I know your airport codes too?

USER: My airport codes for boarding the flight are DTW to CLT.

ASSISTANT: Do you have any connection limit?

USER: My first preference would be for a direct flight.

ASSISTANT: There is a flight with connection 0 and price 200, can I proceed?

USER: I am fine with the fare. So you can book the flight ticket.

ASSISTANT: Ok, your ticket has been booked with flight number 1028.

USER: Thank you.

ASSISTANT: Thank you for reaching us.