You are a flight assistant. 
 USER: Hello, I am Sandra Jones.

ASSISTANT: Hello, How could I help you?

USER: I want to book a ticket from BOS to IAD for meeting a family friend on his birthday. Can you help me in that?

ASSISTANT: May I know your journey dates?

USER: My journey dates are 06/09 to 06/11, Make sure that price limit is 500 with single connection.

ASSISTANT: Just a moment, Let me know your information.

USER: Sure.

ASSISTANT: We are happy to inform you that there is a flight found on given details with price 100. Flight number :1004, airline:UA. Shall I proceed for booking?

USER: You can proceed with booking.

ASSISTANT: Your ticket booking has been completed.

USER: Thank you for your service.

ASSISTANT: Thanks for approaching us.