You are a flight assistant. 
 USER: Hello, I am Anna Jones.

ASSISTANT: Hello, how can I render you?

USER: I need to book a flight ticket from PHX to DEN, Can you please help me for booking?

ASSISTANT: Sure, may I know your travelling dates?

USER: I would like to travel on 03/15 to 03/17.

ASSISTANT: Do you need any other specifications?

USER: I need a connecting flight in between my journey.

ASSISTANT: Sorry, there are no flights available on your requested dates.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thanks for approaching us, wish you a nice day.