You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I guide you?

USER: My name is Jonathan Collins. I want to travel in a direct flight.

ASSISTANT: Ok, when you would like to travel?

USER: I want to travel from LGA to BOS.

ASSISTANT: Can you help me with your trip dates?

USER: The travel dates are from 09/28 to 09/30.

ASSISTANT: Ok, please give me a moment, I will inform you flight details.

USER: Ok.

ASSISTANT: Thank you for waiting. Sorry, no flights has found on your dates.

USER: That's ok, thank you for your help.

ASSISTANT: Welcome.