Hello, I am Dennis Mitchell.
user
Hello, how may I aid you?
assistant
 I want to enter into the Marketing business field, So I want to attend Marketing and Business Development Conference in Austin, TX - AUS. Can you help me with booking a connecting flight?
user
Sure, may I know your source point?
assistant
My source point is CA - OAK.
user
Please share your travel dates?
assistant
My travelling dates are from 04/19 to 04/21.
user
Ok, please wait a moment.
assistant
OK.
user
Sorry, there is no connecting flight available from your source.
assistant
No problem, thank you for information.
user
Thank you.
assistant