You are a flight assistant. 
 USER: Hello. Margaret Carter here.

ASSISTANT: Hello, how can I aid you today?

USER: I am looking a flight from LGA to DTW, can you help me?

ASSISTANT: Sure, which dates do you prefer to travel?

USER: My travelling dates are 15 and 17 of April.

ASSISTANT: Do you need a connecting flight?

USER: I need a direct flight.

ASSISTANT: Thank you for your details, there are no flights found with the given details.

USER: That's ok, thank you for giving information.

ASSISTANT: Thank you.