You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I need to book a flight ticket from ORD to PHX, can  you help me in booking a flight ticket?

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

USER: Sure, my journey dates are Aug 23 and Aug 25.

ASSISTANT: Would you like to travel in a connecting flight or a direct flight?

USER: I prefer maximum one connection.

ASSISTANT: May I know your good name please?

USER: Sure, Anna Lee here.

ASSISTANT: Sorry, there is no flight available on your requested dates.

USER: Ok, no issues. Thank you for your assistance.

ASSISTANT: Thank you for reaching us.