You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: I need to book a ticket from BOS to SFO.

ASSISTANT: Sure, can you please let me know your trip dates?

USER: Departure is on July, 6 and will return by July, 8.

ASSISTANT: Do you have any connection limit preference?

USER: I would prefer connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I prefer to fly major airlines.

ASSISTANT: Could you help me with your name please?

USER: My name is Joshua Campbell.

ASSISTANT: United Airlines is providing a connecting flight with 1024 flight number and airfare is 400. Shall I proceed with this flight?

USER: Please book a flight.

ASSISTANT: For a business class your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.