You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, do you need any help from us?

USER: Can you please help me in booking the flight ticket from BOS to SEA?

ASSISTANT: Sure, could you please share your departure and arrival day?

USER: My travel dates are May 28 and May 30.

ASSISTANT: Ok, could I have your name please?

USER: Dorothy Gonzalez.

ASSISTANT: Ok, do you need direct or connecting flight?

USER: I need a single connection flight.

ASSISTANT: Ok, do you have any other specifications?

USER: I prefer to travel in business class.

ASSISTANT: Sorry, there is no flight on your requesting travelling dates.

USER: Not an issue, thank you for the information.

ASSISTANT: You are welcome, have a great day.