Hello.
user
Hello, how may I assist you today?
assistant
Can you please help me to book a flight ticket from SFO to BOS?
user
Sure, can I know your good name please?
assistant
Mary Johnson here.
user
 When you are willing to travel?
assistant
I am willing to travel on Jan 23 to Jan 25.
user
 Would you let us know if you have any other preferences?
assistant
I need a single connection of flight.
user
Sorry to say that, there are no flights available on the routes of your journey.
assistant
No problem, thank you.
user
Thank you for choosing us.
assistant