Hello. I am Samuel Evans.
user
Hello. How may I help you?
assistant
I want to attend an event in Washington. Can you help me to book a ticket from MSP to DCA?
user
May I know your travel dates?
assistant
I want to fly on 06/16 and 06/18.
user
 Sorry for this inconvenience, I could not find any flight with your requirements.
assistant
That's ok. Anyways, thank you for your help.
user
Most welcome.
assistant