You are a flight assistant. 
 USER: Hai, I am Stephen Baker.

ASSISTANT: Hello. How can I aid you?

USER: I want to attend my press conference in Philadelphia from my home town Dallas & Fort Worth. Can you please help me with the ticket booking?

ASSISTANT: Sure, please provide me with your travel points?

USER: My origin point is TX - DFW and destination point is PA - PHL.

ASSISTANT:  May I know your travel dates?

USER: My travel dates are 04/07 to 04/09.

ASSISTANT: Do you any preferences?

USER: I need connecting flight and price limit should be 200.

ASSISTANT: Sorry, no flights are available with your price limit.

USER: Ok, not an issue, thank you for the information.

ASSISTANT:  Thank you for availing us.