Hello.
user
Hello. How can I aid you?
assistant
I  am Robert Davis. I would like to book a ticket from BOS to IAD, can you please help me out?
user
Sure, I am here to help you. Please let us know your travel dates.
assistant
I am travelling on these dates 09/04 and 09/06.
user
Ok, please be online for a while.
assistant
Sure.
user
Sorry Davis, there is no flight available on your preferred dates.
assistant
Ok no problem, thank you for your services.
user
You are most welcome and thank you for choosing us.
assistant