You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Lisa Clark.

ASSISTANT: How can I assist you?

USER: I would like to book a flight ticket from DFW to IAD.

ASSISTANT: Sure, I will help you with the. May I know your travel dates?

USER: I would like to travel from 07/27 to 07/29.

ASSISTANT: There is a single connection flight available and the price is 200. Do you want me to book?

USER: Yes, please book the ticket.

ASSISTANT: Your booking is confirmed successfully. The flight number is 1009.

USER: Thank you for your response.

ASSISTANT: Thank you for choosing our agency.