Hello.
user
Hello, how may I help you?
assistant
I am Eric Perez, want to travel from DEN to IAD. Please help me.
user
Sure, on which dates you are planning to travel?
assistant
Sure, my travelling dates are from 11/04 to 11/06.
user
Sorry, there is no flights available.
assistant
It's ok, thank you.
user
Most welcome.
assistant