You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, do you need any help from us?

USER: Anna Jones here. Can you please help me in booking a flight ticket from EWR to MSP?

ASSISTANT: Sure, could you please share your departure and arrival day?

USER: Sure, my travel dates are from Sept 28 to Sept 30.

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

USER: Ok, no issues. Thank you for the information.

ASSISTANT: You are welcome, have a great day.