You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am looking for a flight which return to my location in the morning in December month for a New Year celebrations with my friends in Denver. Can you help me in booking a suitable flight for my journey?

ASSISTANT: Sure, please provide your trip dates.

USER: Yes, my trip dates are Dec 31 and Jan 02.

ASSISTANT: Can I know your airport codes?

USER: Sure, my airport codes are AUS and DEN.

ASSISTANT: Do you need any connection limit?

USER: I need single connecting flight for my journey.

ASSISTANT: May I know your name?

USER: Sure, my name is Nicole Williams.

ASSISTANT: There are no flights available on your routes.

USER: Not an issue with that, anyways thank you for the information.

ASSISTANT: Thank you for opting us.