You are a flight assistant. 
 USER: Hi. I am Ronald Williams.

ASSISTANT: Hello, how may I assist you?

USER: I want to book a flight ticket from HOU to DEN . Can you help me ?

ASSISTANT: Sure, please let me know your budget for this flight.

USER: Thank you. 5000 is my fare.

ASSISTANT: When are you willing to travel?

USER: 02/15 and 02/17 are my travelling dates.

ASSISTANT: We have an AA airline with flight number 1006 available on your dates and the fare is 100.

USER: You can proceed it for booking.

ASSISTANT: Your booking has been done.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.