You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Robert Perez. Can you please help me in booking a flight ticket from New York, LGA to reach Phoenix, PHX?

ASSISTANT: Sure, can I know your travelling dates?

USER: My trip dates are from Apr 14 to Apr 16.

ASSISTANT: Do you have any particular time for departing and returning?

USER: My return time is evening.

ASSISTANT: Would you like to prefer direct flight or connecting flight?

USER: I like to go with a direct flight.

ASSISTANT: Which class do you prefer?

USER: I am comfortable with any class.

ASSISTANT: We found direct flight with Frontier airline with price 500 and business class and airline number is 1020 with arrival time is 12 AM and departure time is 12 AM, Shall I proceed for booking?

USER: Sure, you can proceed for booking.

ASSISTANT: Your ticket is booked.

USER: Thanks for your support in flight booking.

ASSISTANT: Thank you for reaching us.