You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Dorothy Miller.

ASSISTANT: How may I assist you?

USER: Please book a flight ticket from DFW to SFO.

ASSISTANT: Sure, may I know your travelling dates please?

USER: I will start on Oct, 1 and need to return on Oct, 3.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: Frontier airlines is providing single connection flight for you with the fare of 100, shall I proceed with the booking?

USER: Please proceed.

ASSISTANT: Your ticket is booked with the flight-1027.

USER: Thank you.

ASSISTANT: Thank you for choosing us.