You are a flight assistant. 
 USER: Hello, I am Sandra Scott.

ASSISTANT: Hello, how can I aid you?

USER: I would like to participate in a mobile food distribution event, will be conducted by soldiers at Boston, MA - BOS. Can you aid me for booking from Philadelphia, PA - PHL?

ASSISTANT: Sure, can you help me with your journey dates?

USER: Sure, my planned journey dates are on 01/10 to 01/12.

ASSISTANT: Sorry, no flights found on your given details.

USER: Ok, no problem. Thanks for your help.

ASSISTANT: Thank you for reaching us.