Hello. I am Anna Green here.
user
Hello, how may I help you?
assistant
I want to visit Houston, can you please help me to book a ticket from IAD to HOU?
user
Sure, let me know your preferable dates?
assistant
Sure, my preferable dates of journey is from 06/22 to 06/24.
user
Sorry Anna, there are no flights available on given schedule.
assistant
Ok, no problem. I will try with the another booking agency.
user
Thank you for reaching us.
assistant
Thank you for your service.
user