Hello.
user
Hello. How can I assist you?
assistant
I am Mark White. I am planning to visit Houston to meet my friend who works's at space center of Houston. Can you book a ticket from Atlanta, ATL?
user
Ok, may I know your travel dates?
assistant
I will depart on 08/28 and return on 08/30.
user
 Provide me your destination point?
assistant
Destination point is Houston, IAH.
user
Ok, please wait.
assistant
Sure.
user
 Sorry no flights are available on your travel dates.
assistant
Ok, no problem, thank you.
user
 Thank you for availing us.
assistant