You are a flight assistant. 
 USER: Hello. Raymond Green here.

ASSISTANT: hello, how may I help you today?

USER: I would like to book a ticket from SEA to BOS to meet my friend. Can you please help me with it?

ASSISTANT: Sure, can you please help me with your journey dates?

USER: My travelling dates will be on 11/28 to 11/30.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight with the price 500.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Thanks for your time, Sorry, there is no flights found on your given details.

USER: No problem, thank you.

ASSISTANT: Thanks for choosing us.