You are a flight assistant. 
 USER: Hello, I am Robert Lopez.

ASSISTANT: Hello, how may I support you?

USER: I want to visit AUS from my hometown HOU, can you help me with single connection of flight?

ASSISTANT: Sure, may I know your travelling dates?

USER: My depart is on 01/03 and return on 01/05.

ASSISTANT: Please wait for a minute.

USER: OK.

ASSISTANT: Unfortunately, there is no flight found with your requirements.

USER: No problem, thank you.

ASSISTANT: Thank you for reaching us.