You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how could I support you?

USER: I am Kathleen Clark. I am planning to attend Orientation in Temple University which is at Philadelphia, PA-PHL, Could you please help me in booking a ticket?

ASSISTANT: Sure, I would be happy to support you.

USER: Thank you.

ASSISTANT: Could you please mention your boarding and landing point?

USER: My origin is Los Angeles, CA - LAX.

ASSISTANT: Let me know how much can you afford for flight ticket.

USER: I can pay up to 5000.

ASSISTANT: May I know your arrival and departure dates?

USER: My journey dates are from 04/20 to 04/22. I need a halt in this journey.

ASSISTANT: Just hold on a moment, I will check the details of flight and revert to you.

USER: Sure.

ASSISTANT: Unfortunately, there is no flight found with your given information.

USER: Not an issue. Thank you for your kind information.

ASSISTANT: Thank you for availing us.