Hello. Myself Donna White.
user
Hello, how may I help you?
assistant
I am planning to visit Denver, will you help me in booking he flight ticket from EWR to DEN?
user
Sure, please provide your trip dates.
assistant
My preferable journey dates are May 11 and May 13.
user
Sorry Donna, on these dates there is no flights available.
assistant
Ok, not an issue. Thank you for your information.
user
Most welcome.
assistant