You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I assist you today?

USER: Please book a ticket from New York, NY-LGA to Minneapolis & St. Paul, MN-MSP. I am Nicole Smith.

ASSISTANT: Sure, please share your travelling dates?

USER: Travel dates are from 02/23 to 02/25.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to inform that no flights are available with your requested details.

USER: Thanks for the help.

ASSISTANT: Thanks for availing us.