You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you today?

USER: Please book me a flight ticket from ATL to SFO to meet my family.

ASSISTANT: Sure, please share me your trip dates.

USER: I have planned to travel on May 07th and return on May 09th.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I prefer connecting flight.

ASSISTANT: For booking, we need your good name. Please mention it.

USER: Lisa Lee.

ASSISTANT: May I know your arrival and depart timings?

USER: I want to return at evening time.

ASSISTANT: We found a Frontier airline and 1013 is flight number with a fare of 100. Shall I proceed?

USER: Yes, please book it.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thank you.

ASSISTANT: Thank you for opting us.