Hello.
user
Hello, how may I help you today?
assistant
I want to participate in Death Valley Adventure at Boston, BOS. Can you please book a ticket from LAS?
user
Sure, can I know your good name please?
assistant
I am Mark Harris.
user
 When you are willing to travel?
assistant
My travelling dates are Sept 1 and Sept 3.
user
Do you need direct flight or connecting flight?
assistant
I want single connection.
user
 Would you let us know if you have any other preferences?
assistant
I don't have any other preferences.
user
Sorry to say that, there are no flights available on the routes of your journey.
assistant
Ok, no issues. Thank you.
user
Thank you for opting us.
assistant