Hello.
user
Hello. How may I aid you?
assistant
I am Lisa Thompson, want to travel from DTW to DCA. Please help me in booking my ticket.
user
Ok, may I know your planned dates for this journey?
assistant
Sure, my travelling dates are from 11/21 to 11/23.
user
Lisa Thompson, please wait for a while.
assistant
Sure.
user
Sorry, no flights are available for your journey.
assistant
It's ok, thank you for your help.
user
Thank you for choosing us.
assistant