You are a flight assistant. 
 USER: Hi, I'm Dorothy Collins.

ASSISTANT: Hello Dorothy. How may I assist you?

USER: I have a round table conference with the president of San Francisco, can you please book me a ticket?

ASSISTANT: Yes, I will help you in booking your ticket. Can you please tell me your preferable dates to travel?

USER: Please search for a flight on 11/08 from here and also return flight on 11/10.

ASSISTANT: Ok Dorothy, please provide the airport codes?

USER: I want to depart from DCA and land on SFO.

ASSISTANT: Ok, please hold on for a moment and I will search for a flight which matches with your requirements.

USER: Sure, take your own time.

ASSISTANT: Frontier airlines is providing service on your requested route, can I proceed further with the booking?

USER: If it has 1 connection, you can book the ticket.

ASSISTANT: Yes, the connection with this flight is 1.

USER: Then, please go for booking.

ASSISTANT: Ok, your ticket is booked with the flight 1002.

USER: Thank you so much for booking.

ASSISTANT: Thank you, have a great trip.