You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am going to attend my convocation at Dallas & Fort Worth, TX - DFW. So, please help me with booking a flight ticket.

ASSISTANT: Sure, May I know your name for booking purpose?

USER: Sure, my name is Nancy Hernandez.

ASSISTANT: Can you provide me your trip dates please?

USER: Sure, I have to go on 06/15 and back on 06/17.

ASSISTANT: May I know your journey locations?

USER: Sure, it's Washington, DC - IAD.

ASSISTANT: Ok, wait for some time.

USER: Sure.

ASSISTANT: We found UA airline with single connection fare of 200. Shall I proceed for booking with airline number 1028?

USER: That's perfectly matching with me, please proceed with the booking.

ASSISTANT: Thanks for connecting us.

USER: Thank you for booking my ticket.