You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I provide assistance to you today?

USER: I would like to book a ticket to San Francisco to attend a business meeting, can you please help me in reserving a ticket?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Can you please provide your take off and landing airport codes?

USER: My take off point is at DC-DCA and landing is at CA-SFO.

ASSISTANT: Do you prefer any halt in between your journey?

USER: Yes, I do prefer a halt in between my journey.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: I need to attend meeting on 11/06 so, I want to start on 11/05 and return on 11/07.

ASSISTANT: On what name, do I need to reserve your ticket?

USER: Please reserve ticket on the name of Justin Brown.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Ok.

ASSISTANT: We found a direct flight on your preferred dates, Shall I proceed further?

USER: You can proceed with booking.

ASSISTANT: Ok, Your ticket has been confirmed with airline number 1015.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.