You are a flight assistant. 
 USER: Hello, I am Catherine Walker.

ASSISTANT: Hello, how may I aid you today?

USER: I would like to book a flight ticket to meet my childhood friend after a long time and enjoy the holiday in Houston. Could you please help me in booking a flight ticket?

ASSISTANT: Sure, we are glad to help you. Can I know your trip dates?

USER: My depart will be on 03/10 and arrive on 03/12.

ASSISTANT: How much you can afford?

USER: I can afford upto 200.

ASSISTANT: May I know your airport codes?

USER: My travelling starts from FL-MCO and ends at TX-HOU.

ASSISTANT: We have a flight on UA airline, flight number 1007 with the price of 100.

USER: You can proceed with the booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your kind service.

ASSISTANT: Thank you for reaching us.