You are a flight assistant. 
 USER: Hello. Nicole Parker here.

ASSISTANT: Hello, How can I aid you today?

USER: I need to travel from DTW to PHL.

ASSISTANT: Ok.

USER: Can you please help me to book my flight ticket.

ASSISTANT: Sure, I will help you in booking your flight ticket. When you want to travel?

USER: My depart is on 02/26 and returning is on 02/28.

ASSISTANT: Thank you for sharing your details.

USER: Price limit is 200 and I need a direct flight.

ASSISTANT: There is no flight found with your specified locations.

USER: Thank you for the information.

ASSISTANT: Thank you for choosing us.