You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a flight ticket with the name Stephanie Carter.

ASSISTANT: Sure, please provide me your journey details?

USER: Book me the ticket from Chicago, IL - ORD to Minneapolis & St. Paul, MN - MSP.

ASSISTANT: Please provide me your travelling dates?

USER: My preferred journey dates are from Sep 9th to Sep 11th.

ASSISTANT: OK, please wait I will check and revert you.

USER: Sure.

ASSISTANT: Thank you for waiting. Sorry, no flights were available on the specified dates you mentioned.

USER: OK, thank you for the information.

ASSISTANT: Thank you for connecting with us, have a great day.