Hello.
user
Hello, how may I assist you?
assistant
Thomas Nelson here. I want to book a flight ticket from BOS to DCA. Can you help me in that?
user
Sure, may I know your travelling dates?
assistant
My travel dates are Oct 21 to Oct 23.
user
Kindly provide your price limit.
assistant
I can afford up to 200.
user
Please wait for  aminute.
assistant
Sure.
user
There is no flight available with mentioned dates.
assistant
Ok, not an issue. Thank you for your help.
user
Thanks for reaching us.
assistant