You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you at present?

USER: I am Jack Gonzalez, can you please help me in booking a direct flight for my journey to DEN from DFW?

ASSISTANT: Sure, please share your planned journey dates.

USER: Sure, my planned journey dates are Aug 4 and Aug 6.

ASSISTANT: Ok, Can you please share your connection limit?

USER: I have already mentioned you that I need a direct flight for my journey.

ASSISTANT: Do you have any requirements that you are looking for?

USER: I need my return flight in the evening.

ASSISTANT: Ok, please wait for a while.

USER: Sure, I will wait for your response.

ASSISTANT: We regret to inform you that, there are no flights moving to your region with your planned dates of travelling.

USER: Not a problem, anyways thank you for the information.

ASSISTANT: Thank you for consulting us.