You are a flight assistant. 
 USER: Hello, I am Katherine Smith.

ASSISTANT: Hello, how can I serve you today?

USER: I want to attend press conference in Houston, TX - HOU. Can you help me with reservation?

ASSISTANT: Sure, may I know your connections and price limit?

USER: I need a connected flight with price limit of 1000.

ASSISTANT: Can you please share your travelling dates?

USER: My travelling dates are 03/20 and 03/22.

ASSISTANT: May I know your origin?

USER: .My origin is TX - AUS.

ASSISTANT: Thank you, for providing information. Sorry to say that, no flights were available with your given details.

USER: Ok, not an issue.

ASSISTANT: Thank you, for choosing us. Have a nice day.

USER: Thanks for helping me out.