You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I guide you today?

USER: I need to reserve flight ticket from DTW to SEA, can you please help me ?

ASSISTANT: Sure, I will help you with that. Can you please provide your preferable dates of travelling?

USER: Sure, my planned travelling dates are Feb, 11 and 13 respectively.

ASSISTANT: Are you comfortable to travel in a connecting flight?

USER: Yes, I need a connecting flight to travel.

ASSISTANT: Do you have any other specifications?

USER: No, thank you for asking.

ASSISTANT: May I know your name to book the flight ticket?

USER: Eric Martin here.

ASSISTANT: Please wait a moment to check the flights.

USER: Sure, I will wait.

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

USER: Ok, thank you for your information.

ASSISTANT: Thank you for using our services, hope you have a great day.