You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Laura Robinson.

ASSISTANT: How can I help you today?

USER: I want to visit my parents this weekend, could you help me in booking the ticket?

ASSISTANT: Sure, can I know the details of travel?

USER: It's from AUS to MCO. The dates of travel are from 06/18 to 06/20.

ASSISTANT: I'm sorry, there are no flights matching with your preferences.

USER: That's ok.

ASSISTANT: Thank you, have a good day.

USER: Thank you for your time.