Hello,.
user
Hello,. How may I assist you today?
assistant
I have planned to lunch a new bike so I want to book a flight ticket from DCA to LAS. Can you help me to book a flight ticket?
user
Can you please provide me your travelling dates?
assistant
Sure, my travelling dates are from 03/16 to 03/18.
user
Ok, please wait for a while I will check and get back to you.
assistant
Ok.
user
Sorry to say there were no flights found in your given details.
assistant
Ok, no problem.
user
Thank you for reaching us. Have a nice day.
assistant
Thank you so much.
user