You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Myself Carol Thomas. I am planning to visit Los Angeles, will you help me in booking the flight ticket from BOS to LAX?

ASSISTANT: Sure, please share your travel dates.

USER: My preferable journey dates are Aug 22 and Aug 24.

ASSISTANT: May I know the connection limit?

USER: I need a flight with single connection.

ASSISTANT: Do you have any class preference?

USER: I am comfortable in any class.

ASSISTANT: Do you have any specifications?

USER: My return time must be in evening.

ASSISTANT: Please wait a moment.

USER: Ok, I will wait for your response.

ASSISTANT: Sorry, there is no flight on your details.

USER: Ok, no an issue. Thank you for your information.

ASSISTANT: Thank you for choosing us.