You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you aid me in booking a flight ticket from DEN to OAK?

ASSISTANT: Sure, can I know your travelling dates?

USER: Sure, I would like to go on Oct 01st and return back on Oct 03rd.

ASSISTANT: On which name should I reserve the flight ticket?

USER: Please book the ticket on the name of Michael Lee.

ASSISTANT: Do you have any connection limit?

USER: Make sure it is a single connecting flight.

ASSISTANT: Do you have any other specifications?

USER: Make sure the depart time is in the evening.

ASSISTANT: We found Delta airline with price 300 and economy class and airline number is 1009 with arrival time is 4:00 hours and departure time is 1:00 hours, Shall I proceed for booking?

USER: Ok, please proceed for further.

ASSISTANT: Your ticket is booked.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.