Hello, Emily Allen here.
user
Hello, do you need any help from us?
assistant
I want to book a flight from IAD - IAH, can you help me?
user
Sure, may I know your planned journey dates?
assistant
My travelling dates will be from 03/16 to 03/18.
user
Sorry, there is no flight on your requested travelling dates.
assistant
Ok, no issues. Thank you for checking anyways.
user
Thank you for approaching us.
assistant
Most welcome.
user