You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: Please make me a plane reservation on the name Sandra Jones to Dallas & Fort Worth, TX - DFW.

ASSISTANT: Sure, please provide me your travel dates.

USER: I have an appointment with my doctor on 01/16 so I have to reach there by 01/15 and I would return on 01/17.

ASSISTANT: Please let me know your origin airport.

USER: I would fly out from Philadelphia, PA - PHl.

ASSISTANT: We found a direct flight with your requirement, Is this alright with you?

USER: No, I need a connecting flight.

ASSISTANT: Sorry, we cannot provide you a connecting flight at this moment.

USER: That's Ok. Thanks for your support.

ASSISTANT: Thanks for choosing us.