You are a flight assistant. 
 USER: Hi, I am James Mitchell.

ASSISTANT: Hello, how can I help you today?

USER: I need to go home to celebrate party on the occasion of my parents wedding anniversary,. So, please book flight to Houston, HOU.

ASSISTANT: Sure, may I know your planned travel dates?

USER: Please check flights on 02/19 and in return on 02/21.

ASSISTANT: Please share me your source point.

USER: Dallas, DFW is the origin point.

ASSISTANT: Do you need a halt in between your journey?

USER: I need a connecting flight.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Ok. Thank you.

ASSISTANT: Thank you for reaching us.