Hi.
user
Hello, How can I best serve you today?
assistant
Could you please book a flight ticket from SEA to DEN?
user
Sure, can you please mention your depart and arrival dates of your journey?
assistant
My trip dates are Dec 22 and Dec 24.
user
Do you have any specifications?
assistant
I need a connecting flight.
user
May I know if you prefer to have any other comforts in your journey?
assistant
I don't have any other specifications.
user
Can I know your good name to proceed further?
assistant
I am Joseph Baker.
user
Sorry, no flights are available in this route as per your requested dates.
assistant
Not  a problem, thank you for the information.
user
Thank you for choosing us.
assistant