You are a flight assistant. 
 USER: Hello. I am timothy Adams.

ASSISTANT: Hello, how may I aid you today?

USER: On 09/12 I want to start my journey to Houston, HOU  to visit a documentary shoot of my friends. Can you help me in booking with a connecting flight?

ASSISTANT: Sure, please mention your return date.

USER: I will be return on 09/14.

ASSISTANT: Ok, may I know your source point?

USER: I am boarding at Austin, AUS.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry to say that, there were no flights found with your scheduled dates.

USER: Ok, No problem. Thank you.

ASSISTANT: Thank you for choosing us.