You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Can you please help me in booking my flight ticket from AUS to HOU?

ASSISTANT: Sure, I am here to help you out. May I know your travelling dates please?

USER: My travelling dates are June 13 and June 15.

ASSISTANT: Can you please share your connection limit?

USER: No, preference.

ASSISTANT: May I know your name please?

USER:    Myself Joshua Campbell.

ASSISTANT: Is there any preferences?

USER: No.

ASSISTANT: Joshua Campbell, there are no flights available in your route.

USER: Ok, thanks for checking.

ASSISTANT: Thank you for choosing us.