You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Lisa Taylor.

ASSISTANT: How may I help you out?

USER: I need some help in my ticket booking to attend a convocation meeting, can you help in that one?

ASSISTANT: Sure, I will help you in booking the ticket.

USER: Thank you.

ASSISTANT: May I know your travelling dates please?

USER: I would like to board on 11/26 and catch the return flight on 11/28.

ASSISTANT: Can I know your airport codes please?

USER: My airport codes are from DFW to SEA.

ASSISTANT: Ok, please hold on for a while.

USER: Sure.

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

USER: I am ok with that flight, you can reserve the ticket.

ASSISTANT: Ok, your ticket has been booked with flight number 1000.

USER: I am very happy with your service that my ticket is done. Most welcome.

ASSISTANT: Thank you for choosing us.