You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: How can I book a flight ticket for my friend from NY - JFK to MN - MSP?

ASSISTANT: Sure, may I know your planned travel dates?

USER: Please book for the dates Sept 14 and Sept 16.

ASSISTANT: Sorry, there are no flights available for your desired dates. Please provide me the name.

USER: That is ok, my friend's name is Richard Scott.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your assistance.