You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Planning to visit Central Park at New York, could you please help me with booking a flight ticket from HOU to LGA?

ASSISTANT: Sure, I am happy to help you. May I know your name?

USER: I am Nancy Taylor.

ASSISTANT: Ok, can you please let me know your travel dates?

USER: I would like to depart on Dec 3rd and return on Dec 5th.

ASSISTANT: Do you have class preference?

USER: I need a direct flight in economy class.

ASSISTANT: As per your requirements, there is a flight-1007 available in UA airlines and the ticket fare is 200 only. Can I book the ticket for you?

USER: I need to depart in the afternoon.

ASSISTANT: Sure, can I book the ticket?

USER: Yes, please confirm the booking.

ASSISTANT: Your ticket is booked successfully. Your flight departure time is at 18:00PM and arrival at 15:00PM.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: You are welcome and have a nice day.