You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you?

USER: I need to reserve a ticket from LGA to DTW, can you help me in doing that?

ASSISTANT: Sure, May I know the travelling dates?

USER: My trip dates are Aug 13 to 15.

ASSISTANT: Do you have any connection limit?

USER: I need a direct flight.

ASSISTANT: Is there any other requirements?

USER: I prefer economy class.

ASSISTANT: May I know your name?

USER: Michelle Thompson here.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your chosen dates.

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

ASSISTANT: Thank you for availing us.