You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist?

USER: Kenneth Phillips here. Reserve a flight ticket for me that is from BOS to SFO. For my business trip to Boston.

ASSISTANT: Ok, I will help you with that. May I know the travel dates?

USER: My price limit is less than 200. My travelling dates for journey are 03/19 to 03/21.

ASSISTANT: There is a airfare as you requested and the airlines is Frontier, the connecting flight limit is 1. Can I book?

USER: I need a connecting flight. Sure, you can book it.

ASSISTANT: Thank you for connecting with our agency. The flight ticket is been booked.

USER: Thank you.