Hello. Anna Lee here.
user
Hello, do you need any assistance from us?
assistant
Yes, I need your help in ticket booking from DEN to IAD. Can you do this for me?
user
Sure, please tell me your preferable travelling dates to check the availability.
assistant
My travelling dates are from 05/29 to 05/31.
user
Ok, please wait for a moment.
assistant
Ok.
user
Thank you for waiting, there are no flights in your route as per your requested dates.
assistant
It's ok. Thank you.
user