You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Can you help me to book a flight ticket from DFW to IAD?

ASSISTANT: Sure, please share your journey dates?

USER: I will start on Nov, 28 and return on Nov, 30.

ASSISTANT: Do you have any specifications?

USER: I am looking for connecting flight.

ASSISTANT: Is there any class preference?

USER: No, thanks.

ASSISTANT: May I know your good name?

USER: Kimberly Harris here.

ASSISTANT: We found a flight in Southwest airlines, flight number is 1028 with single connection and price is 400 business class. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.