Hello.
user
Hello, how may I help you?
assistant
Can you please help me to book a flight from IAD to BOS?
user
Sure, can you please let me know your travelling dates?
assistant
My travel dates are Sept 07 to 09.
user
Do you like to go with a connecting or direct flight?
assistant
I prefer a connecting flight.
user
Are there any other specifications?
assistant
I prefer economy class to travel and my depart time should be evening.
user
Please help me with your name for booking.
assistant
I am Barbara Hill.
user
Sorry, no flights are available in this route as per your requested dates.
assistant
No problem, thank you for the information.
user
 Thank you for reaching us.
assistant