You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: Jonathan Anderson here. Please help me out in booking the ticket from OAK to DFW.

ASSISTANT: Sure, we are here to assist you. Can you share me your trip dates?

USER: My trip dates will be 09/01 to 09/03.

ASSISTANT: Do you need any halt?

USER: Yes, I need 1 lay by with in my route.

ASSISTANT: Sorry to say, there are no flights found with your requirements.

USER: That's ok, not a issue. Thank you for informing.

ASSISTANT: Thank you for choosing us.