You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How may I help you?

USER: I am Stephanie Scott, I would like to travel LAS from JFK. Can you please help me to book a flight ticket in the month of September?

ASSISTANT: Please let me know your travel days?

USER: My travelling dates are 09/25 and 09/27.

ASSISTANT: Please specify ticket price limit?

USER: My price limit is 5000.

ASSISTANT: Ok. No flight found for your requirement. Thanks.

USER: Not an issue, thank you for the information.