You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I render you today?

USER: I am Kevin Barker.

ASSISTANT: Ok.

USER: I am planning to book a flight ticket to MSP. So, can you please search a flight ticket from BOS?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travelling dates are June 11 and June 13.

ASSISTANT: Do you have any preferences?

USER: I need direct flight to complete my trip.

ASSISTANT: Ok, please wait for a moment.

USER: Ok, sure.

ASSISTANT: Sorry, there are no flights found from your source.

USER: Ok, fine thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: Most welcome.