You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I aid you?

USER: I am John Allen. I want to fly from PHL to DFX to meet my parents, can you please help me to book a flight ticket?

ASSISTANT: Help me with your journey dates?

USER: My trip dates are 08/23 to 08/25.

ASSISTANT: Do you have any specifications?

USER: I need a halt.

ASSISTANT:  We found a connecting flight JetBlue with flight number 1003 and fare is 100.

USER: Ok, book the ticket.

ASSISTANT:  Your booking is confirmed.

USER: Thanks for your help.

ASSISTANT:  Thank you for availing us.