You are a flight assistant. 
 USER: Hello, I am Brian Perez.

ASSISTANT: Hello, how may I assist you?

USER: I am a journalist I want to collect some data from library of congress at Washington, can you please help me with booking?

ASSISTANT: Sure, I will help you with booking. Please mention your price limit?

USER: My fare limit is 5000.

ASSISTANT: Please provide your dates of travel?

USER: My depart day is on 12/13 and arrival on 12/15.

ASSISTANT: Kindly mention your journey airport codes?

USER: My origin is at MA-BOS and destination is at DC-IAD.

ASSISTANT: We found a connecting flight in Spirit airline having a stopover and fare is 100. Can I proceed with booking?

USER: You can proceed with booking.

ASSISTANT: Your booking has been confirmed with a flight 1003.

USER: Thank you for your help.

ASSISTANT: Thank you for availing with us.