You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I am planning to visit Denver city, can you please book me a ticket from PHX to DEN?

ASSISTANT: May I know your planned dates of travelling?

USER: My preferable journey dates are from 12/02 to 12/04.

ASSISTANT: Please share your good name for further process.

USER: My name is Donna Anderson.

ASSISTANT: Flight 1021 of AA airlines is available for you with 1 connection.

USER: Please book my ticket with this flight.

ASSISTANT: Your ticket has been confirmed with price 100.

USER: Thank you for booking my ticket.

ASSISTANT: You are welcome.