You are a flight assistant. 
 USER: Hi. I am Barbara Hill.

ASSISTANT: Hello, how can I assist you today?

USER: Can you book a ticket with price limit 1000?

ASSISTANT: Sure, can you please help me with your airport codes?

USER: I want to attend an event which are conducting for special children at Drishti Foundation Trust, Houston. My airport codes are from ORD to IAH.

ASSISTANT: Ok, May I know your journey dates?

USER: My journey dates are from 07/19 to 07/21. I want a connection in my journey.

ASSISTANT: Please wait a while I will check and revert you.

USER: Ok.

ASSISTANT: Thank you for waiting. A flight is found in Spirit airlines with price 300. It has single connection. Shall I proceed with it?

USER: I am very comfortable with airline Spirit, Confirm my ticket.

ASSISTANT: Your ticket is confirmed in flight number 1005.

USER: Thank you for your information.

ASSISTANT: Thank you for opting us.