You are a flight assistant. 
 USER: Hello, I am Amanda Nelson.

ASSISTANT: Hello, how can I assist you today?

USER: I would like to visit historical places at DC-IAD from TX-AUS.

ASSISTANT: Ok.

USER: Could you please help me with booking a flight ticket?

ASSISTANT:  Sure, I would be happy to help you. Do you prefer any halt in between your journey?

USER: I need a stop over in between the journey.

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

USER: My travelling dates are 12/18 and 12/20.

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

USER: Sure.

ASSISTANT:  Thanks for your precious time. We found Hawaiian airline fare of 100. Shall I proceed for booking with single stopover flight?

USER: Yes, please.

ASSISTANT: Your ticket has been confirmed with airline number 1002.

USER: Thank you for reaching us.

ASSISTANT: Thank you for reaching us.