You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I would like to visit Boston to meet my cousin, please help me in booking a ticket from LAS to BOS.

ASSISTANT: Sure, please share your journey dates?

USER: My planned travel dates are on June 1 and June 3.

ASSISTANT: Do you have any specifications?

USER: I prefer a connecting flight for my trip.

ASSISTANT: Is there any class preferences?

USER: Any class is comfortable for me.

ASSISTANT: May I know your good name?

USER: My name is Rachel White.

ASSISTANT: Sorry, no flights found on your given details.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for choosing us.