Hello.
user
Hello. How may I assist you at this moment?
assistant
I'm John Johnson, I am planning to go for DCA from LAS.Can you please help me to book my ticket?
user
Sure, may I know your travelling dates?
assistant
My trip dates are 04/16 and 04/18.
user
Sorry John, no flights as per details.
assistant
Ok, fine.
user
Thank you for contacting us.
assistant
Thank you for giving information.
user