Hi.
user
Hello.
assistant
Myself Angela Mitchell.
user
How may I help you?
assistant
 I am planning for a world trip, so I want to start my trip from ATL to OAK.
user
Ok, that's great. May I know your trip dates?
assistant
My travelling dates are from 07/21 to 07/23.
user
Sorry Angela, no flight had been found on your details.
assistant
Ok, no problem.
user
Thank you for contacting us.
assistant
Thank you for your services.
user