You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am planning to travel from BOS to SEA. Can you please help me to book a ticket?

ASSISTANT: Ok, which class do you prefer to travel?

USER: I would prefer economy class.

ASSISTANT: May I know your travelling dates to search for the flight?

USER: My travelling dates will be on Sept 17 to Sept 19.

ASSISTANT: May I know your connection limit?

USER: I need a direct flight.

ASSISTANT: Can I have your name?

USER: George Perez here.

ASSISTANT: Sorry to say, there is no flight available for you.

USER: Ok, not an issue.

ASSISTANT: Thank you for reaching us.

USER: Thank you.