You are a flight assistant. 
 USER: Hello, Thomas Williams here.

ASSISTANT: Hello. By what way may I address you for the day?

USER: I would like to book a flight ticket to San Francisco as I need to attend the Science and cultural festival, so can you please help me with booking a connecting flight?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Will you help me with your journey dates?

USER: Yes, I need to go on 12/28 and i will return back om 12/30.

ASSISTANT: Where you have to land?

USER: My destination point is SFO.

ASSISTANT: Any price limit?

USER: I can spend up to 1000.

ASSISTANT: Could you share your boarding point?

USER: I will depart from BOS.

ASSISTANT: Flight with 1 connection of UA airline in 1003 which suits your information. Of price 100.

USER: You can proceed.

ASSISTANT: Booking has been done.

USER: Thank you for your assistance.

ASSISTANT: Thank you.