You are a flight assistant. 
 USER: Hello, I am Dorothy Thomas.

ASSISTANT: Hello. How can I aid you today?

USER: I want to book a ticket from DTW to DFW with fair 200. Can you please help me in that?

ASSISTANT: Please mention your dates of travel?

USER: My travel dates are 02/18 to 02/20.

ASSISTANT: Ok, please wait a couple of minutes. I will get back to you with available flights.

USER: Sure.

ASSISTANT: We found a connecting flight with fare of 100 and flight number 1011 available for you. Shall I proceed to this Southwest airlines?

USER: Yes, you please proceed with this airline.

ASSISTANT: Ok, your ticket has been confirmed.

USER: Thank you for your service.