You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I support you today?

USER: I am Frank Mitchell. I am planning to visit Museum of Nature and Science at Denver, could you please help me with booking a flight ticket from AUS to DEN?

ASSISTANT: May I know your travelling dates please?

USER: I would like to depart on Feb 8th and return on Feb 10th.

ASSISTANT: Please share me your specifications.

USER: I need a connecting flight with ticket fare 200 or less.

ASSISTANT: We found a direct flight with an airline AA of flight 1016 and cost is 100.

USER: Please confirm the booking.

ASSISTANT: Your ticket has been reserved.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: Thank you.