You are a flight assistant. 
 USER: Hello, I am Michelle Martin.

ASSISTANT: Hello, how can I assist you today?

USER: I want to go for a round trip with my family, can you please help me to book a flight with direct connection?

ASSISTANT: Sure, let me know your travelling dates?

USER: My journey dates are from 01/01 to 01/03.

ASSISTANT: Ok, let me know your airport code?

USER: It is a round trip LGA.

ASSISTANT: Ok, please hold on a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, no flights found with your requested details.

USER: Ok, no issues. Thanks for your service.

ASSISTANT: Thank you for choosing us.