You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am planning to travel from AUS to DEN, can you please help me in flight booking?

ASSISTANT: Do you need a normal cost airline or low cost airline?

USER: I want normal cost airline.

ASSISTANT: Sure, may I know your travelling dates?

USER: I want to fly on Jan 02, return on Jan 04.

ASSISTANT: May I know your connection limit?

USER: I want a flight with one connection.

ASSISTANT: May I know your name please?

USER: My name is Robert Mitchell.

ASSISTANT: Sorry to say, no flight is available for you as per your requests.

USER: Not an issue, thank you.

ASSISTANT: Thank you for reaching us.