You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I assist you?

USER: Please book a ticket from New York, NY-EWR to Detroit, MI-DTW.

ASSISTANT: Sure, let me know your travelling dates?

USER: Departure date is 01/11 and 01/13 is return date.

ASSISTANT: Please provide your specifications.

USER: Price limit 500.

ASSISTANT: May I know your name?

USER: Connections limit 1. My name is Samantha Clark.

ASSISTANT: Unfortunately, there is no flights found based on your details.

USER: Thanks.