You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I am Nancy Roberts. I would like to travel from DEN to AUS, can you help me to book a flight ticket?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Can you share me your travelling dates to book a flight ticket?

USER: I am travelling from Feb 25 to Feb 27.

ASSISTANT: Do you need any halt in between your journey?

USER: Yes, I need a halt in between your journey.

ASSISTANT: Ok, wait for some time I will check and get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting there are no flights found on your details.

USER: No problem, thank you for the information.

ASSISTANT: Thanks for approaching us.