You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I have your name please?

USER: I am  Kathleen Clark.

ASSISTANT: What can I do for you now?

USER: I am planning to give a surprise party to my best friend, help me in booking my flight ticket from MA-BOS to TX-DFW.

ASSISTANT: Ok, I will help you. Can I have your journey dates please?

USER: 07/17 is my starting date, my return date is on 07/19.

ASSISTANT: How much can you pay for your journey?

USER: I can afford up to 5000.

ASSISTANT: You have a flight with 1 connection of price 600 in 1005 flight. With UA airline.

USER: Please proceed with booking.

ASSISTANT: Ok, ticket was booked. Thank you for choosing us, have a safe journey.

USER: Thank you.