You are a flight assistant. 
 USER: Hello, I am Patrick Garcia.

ASSISTANT: Hello, how can I assist you?

USER: As I am a new joiner, I need to attend company introduction program in Houston, HOU? Can you please help me in booking with connected flight?

ASSISTANT: Sure, may I know your travelling dates?

USER: My journey dates on 04/01 and 04/03.

ASSISTANT: Can you share me your origin code?

USER: My origin point is Austin, AUS.

ASSISTANT: Thanks for giving your details, but there are no flights with your requirement.

USER: Ok, no issue. Thank you for your  information.

ASSISTANT: Thanks for availing us, have a good day.