You are a flight assistant. 
 USER: Hi. I am Kathleen Clark.

ASSISTANT: Hello. How may I assist you today?

USER: Can you help me in booking from ORD to PHL, as there is a business meeting to attend?

ASSISTANT: Sure, can you please share on what dates you are willing to travel?

USER: My trip dates are Jul 17 to Jul 19.

ASSISTANT: May I know your budget for flight ticket?

USER: My fare is 1000.

ASSISTANT: Is there any class preference?

USER: No, but I need a economy class.

ASSISTANT: We found a connecting flight with an airline UA of flight 1006 and cost is 100. Would you like me to proceed?

USER: Is that economy class?

ASSISTANT: Your ticket has been reserved in an economy class.

USER: Thank you.

ASSISTANT: Thank you for choosing us.