You are a flight assistant. 
 USER: Hi, Debra Lee here.

ASSISTANT: Hello, how may I help you?

USER: I need to book a flight ticket from LGA to LAS to enjoy Innovation festivals. Can you help me in booking a connected flight?

ASSISTANT: Sure, please share your journey dates?

USER: Sure, my scheduled dates are Jul 27 and Jul 29.

ASSISTANT: Do you have any specifications?

USER: I would prefer return time at afternoon.

ASSISTANT: Is there any class preferences?

USER: No.

ASSISTANT: We found a flight in Frontier airlines, flight number is 1008 with single connection and price is 100 arrival time at afternoon 13:00PM. Shall I proceed with economy class?

USER: Yes, you can.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your assistance.

ASSISTANT: Thank you for choosing us.