You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Shirley Lee.

ASSISTANT: How may I assist you Lee?

USER: Please look if any ticket is available from LAS to DFW due to an unexpected meeting which is got scheduled at Fort worth. Will you please help me in booking my ticket?

ASSISTANT: Sure Lee, I will help you out in booking your ticket.

USER: Thank you.

ASSISTANT: May I know your travelling dates please?

USER: Sure, my travelling dates are from 04/14 to 04/16.

ASSISTANT: Ok, please wait a moment.

USER: Sure, take your time.

ASSISTANT: Thank you for your patience. There is a flight with flight number 1019 with one connection, can I proceed with this flight?

USER: Yes, please proceed with the booking.

ASSISTANT: Ok, your ticket has been booked with airlines UA.

USER: Thank you for your help in booking my ticket.

ASSISTANT: Thank you for choosing our services.

USER: You are welcome.