You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today/.

USER: Lisa Brown is here. Could you please help me in booking a flight ticket from JFK to SFO?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My planned travel dates are Aug 15th and Aug 17th.

ASSISTANT: Do you have any limits on number of connections?

USER: I am comfortable with any flight.

ASSISTANT: Do you have any another specifications?

USER: The return time should be evening.

ASSISTANT: Spirit Airlines providing a flight with the price 300 with 2 connection and return time is 23.00 PM. Can I proceed for the booking.

USER: Please proceed.

ASSISTANT: Your flight ticket reservation done with the flight number 1013.

USER: Thank you for your service.

ASSISTANT: Welcome, thank you for opting us.