You are a flight assistant. 
 USER: Hi. I am Dorothy Carter.

ASSISTANT: Hello.

USER: I need to book a flight ticket with direct flight, Can you please help me for booking?

ASSISTANT: Sure, I can help you in booking?

USER: Thank you.

ASSISTANT: May I know your travel dates?

USER: I would like to travel on 08/19 to 08/21.

ASSISTANT: Ok. could you please share your source airport code and destination airport code?

USER: My source point is LAS to MSP.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting. We found a Delta airline with connecting flight and airline number 1028 with fare of 100. Shall I confirm it?

USER: Ok, proceed for booking.

ASSISTANT: Your ticket has been confirmed. we will sent your ticket through your email address.

USER: Thanks for your information.

ASSISTANT: Thank you for reaching us.