You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you at present?

USER: Can you please help me to book a flight from BOS to SFO?

ASSISTANT: Sure, please share me your trip dates.

USER: My travel dates are Apr 07 to 09.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I prefer connecting flight.

ASSISTANT: If you can help me with your name, I can check with the availability of flights.

USER: I am Gregory Perez.

ASSISTANT: May I know if you prefer to have any other comforts in your journey?

USER: No other preferences.

ASSISTANT: We found a connecting flight 1019 in Spirit airlines at the price of 200 with economy class. Can I proceed?

USER: Please proceed.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for choosing us.