You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Ruth Lee.

ASSISTANT: How can I help you?

USER: I have a business meeting in San Francisco. Can you help me for booking a flight ticket from OAK to SFO?

ASSISTANT: Please mention your travel dates.

USER: My travelling dates are June 09 and June 11.

ASSISTANT: Do you have any preferences?

USER: My return time is evening.

ASSISTANT: Do you have any connection limit?

USER: I need a single connecting flight.

ASSISTANT: Frontier airlines is providing the flight-1020 with single connection and the flight fare is 100. Can I proceed?

USER: Ok, please proceed for booking.

ASSISTANT: Your booking is confirmed.

USER: Thank you for booking.