You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you?

USER: Can you please book a ticket from DFW to OAK to meet my sister?

ASSISTANT: Sure, we are glad to help you. May I know your travelling dates?

USER: My travelling dates are Mar 23 and Mar 25.

ASSISTANT: Do you have any break in between journey?

USER: I want a flight with single connection.

ASSISTANT: Is there any other specifications for you?

USER: No.

ASSISTANT: Can I have your good name?

USER: I am Timothy Lewis.

ASSISTANT: Delta Airlines is providing connecting flight with the ticket fare of 100 and depart time is 21:00 hours, arrival time is 9:00 hours. Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Ok, your ticket is reserved in an economy class and the flight number is 1023.

USER: Thank you.

ASSISTANT: Thank you for contacting us.