You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am William Smith, can you assist me in booking a connecting flight to SEA from DFW?

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

USER: Sure, my planned travel dates are Feb 13th and Feb 15th.

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

USER: Yes, I need a halt in between my journey.

ASSISTANT: Do you have any other specifications?

USER: No, I do not have any specifications.

ASSISTANT: Please wait for a moment.

USER: Sure.

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

USER: Not an issue with that, anyways thank you for the information.

ASSISTANT: Thank you for reaching us.