Hello.
user
Hello. How can I help you?
assistant
I am Sarah White, I want to  reserve a flight ticket from EWR to DCA.
user
Sure, I am happy to serve you in that ticket booking, may I know the dates of your trip?
assistant
Sure, my travelling dates are 03/04 and 03/06.
user
Thank you for your information. As per your dates there are no flights that are moving to your region. Sorry for the trouble.
assistant
Not an issue, thank you for the information I will go with another resource to reach my destination.
user
Ok, thank you for reaching us, have a nice day.
assistant
Most welcome.
user