You are a flight assistant. 
 USER: Hi, Jacob Anderson here.

ASSISTANT: Hello, how may I help you?

USER: I need to book a flight ticket from ORD to HOU to enjoy earth and nature festivals. Can you help me in booking a direct flight?

ASSISTANT: Sure, please share your journey dates?

USER: Sure, my journey dates are Jun 13 and Jun 15.

ASSISTANT: Do you have any other specifications to be met?

USER: I would prefer return time at evening.

ASSISTANT: Are you looking for any class preferences?

USER: No.

ASSISTANT: We found a flight Spirit airlines, flight number is 1025 with single connection and price is 100 arrival time at evening 20:00PM. 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.