You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Sandra Young here. I want to book a flight ticket from Dalls. So, can you please check for the flights from DFW – LAS?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My planned travelling dates are 09/18 and 09/20.

ASSISTANT: Do you have any specifications?

USER: Yes, I want 1 stopover in between my journey.

ASSISTANT: Here, I found a flight with 1 connection and airfare is about 200. Shall I proceed in booking?

USER: Make sure, that my return journey time should be in evening.

ASSISTANT: Yes, In an economy class your ticket has been confirmed for the flight 1019 in UA airlines.

USER: May I know the return journey time?

ASSISTANT: The return flight is for evening.

USER: Ok, you can proceed with that booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you, for your service.

ASSISTANT: Thank you for reaching us.