Hello.
user
Hello. How can I assist you?
assistant
Can you help me to book a direct flight?
user
 Sure, We are here to help  out.
assistant
Thank you.
user
On which name should I book the flight ticket?
assistant
Please book my flight ticket under the name of Catherine Scott.
user
 Ok, Kindly share me your source and destination airport codes.
assistant
My airport codes are DCA and AUS.
user
When would you like to travel?
assistant
My preferable journey dates are Apr 28 and Apr 30.
user
Do you have any other preferences ?
assistant
No, thanks for asking.
user
Unfortunately, there are no flights found according to your requirement.
assistant
No problem, thank you for the information.
user
Thank you for opting us.
assistant