You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Can you please help me to book a flight from SEA to DFW?

ASSISTANT: Sure, on what dates are you planning to travel?

USER: My planned dates are on June 14th to 16th.

ASSISTANT: How many connections do you need?

USER: I prefer a direct flight.

ASSISTANT: Any other requirements to be met?

USER: No.

ASSISTANT: Please forward your name.

USER: Sure, my name is Ashley Allen.

ASSISTANT: Ok, please give me a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, I regret to inform you that there are no flights obtained on your journey dates to book a flight ticket.

USER: Ok, thanks for sharing the information.

ASSISTANT: Thank you for approaching us.