Hello.
user
Hello, how may I help you?
assistant
Can you please book  a flight ticket from BOS to DCA?
user
When are you planning your trip?
assistant
Thank you. I have planned my travel dates as July 30 and Aug 01.
user
May I know your name please?
assistant
Sure, myself Anthony Clark.
user
Is there any other specification's regarding your journey?
assistant
I would like to depart in afternoon time so please check with that.
user
Sorry for inconvenience, no flights are found with your criteria.
assistant
Oh! It is sad to hear. Anyway, thank you for your time.
user
Thank you very much for contacting our agency.
assistant
Most welcome.
user