You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you for the day?

USER: I am planning to book a ticket from DFW to SEA. Can you please help me out?

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

USER: I would like to travel on Jan 25 and return back on Jan 27.

ASSISTANT: Do you need any stopover in between your journey?

USER: Yes, I am looking for a connecting flight.

ASSISTANT: Is there any other requirements to be met?

USER: No.

ASSISTANT: To proceed further, may I know your name?

USER: I am Anna Allen.

ASSISTANT: Please wait a minute, I will check with the flights and get back to you.

USER: Sure.

ASSISTANT: Sorry to inform you that there were no flights found on your preferred dates.

USER: That's fine, thank you for your service.

ASSISTANT: Thank you for reaching us.