You are a flight assistant. 
 USER: Hello, I am Gary Garcia.

ASSISTANT: Hello, how can I serve you today?

USER: I want to travel from HOU to ORD for a party, Can you please book a ticket for me?

ASSISTANT: Sure, May I know your journey dates?

USER: My depart is on 12/11 and my return is on 12/13 with price limit 1000.

ASSISTANT: Please wait a moment, I will check the availability and let you know.

USER: Sure.

ASSISTANT: Thank you for being patient, We found Spirit airline with flight number 1008 and price 200 matched your requirements. Shall I proceed for booking?

USER: You can proceed with the booking.

ASSISTANT: Ok, Your booking has been done.

USER: Thank you.

ASSISTANT: Thanks for choosing us, Have a nice journey.