You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I planned to meet my friend in DFW, can you please help me to book a flight ticket from SFO?

ASSISTANT: Sure, I am happy to help you. May I know your travelling dates?

USER: I prefer to travel on Sep 19 and Sep 21.

ASSISTANT: Do you prefer any stopover in between journey?

USER: I prefer to travel in a connecting flight.

ASSISTANT: Is there any other specifications for you?

USER: I would like to depart in evening.

ASSISTANT: May I know your good name?

USER: I am Deborah Clark.

ASSISTANT: Delta Airlines is providing connecting flight with the ticket fare of 100 and depart time is 21:00 hours, arrival time is 12:00 hours. Shall I proceed?

USER: Ok, please confirm my booking.

ASSISTANT: Ok, your ticket is reserved in an economy class and the flight number is 1003.

USER: Thank you for your help.

ASSISTANT: Thank you for availing us.