You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you today?

USER: Can you aid me to book a flight ticket from AUS to MSP?

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: My trip dates are Aug 20 and Aug 22 respectively.

ASSISTANT: Do you have any specifications?

USER: I want a connecting flight.

ASSISTANT: On what name, do I need to reserve the ticket?

USER: Angela Baker here.

ASSISTANT: Sorry, no flights are available as per your requirements.

USER: Thank you.

ASSISTANT: Thank you for reaching us.