You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Can you please help me in booking a flight ticket from Seattle, SEA to reach Boston, BOS?

ASSISTANT: Sure, may I know your good name please?

USER: My good name is Gary Parker.

ASSISTANT: Ok, may I know on which dates you are willing to travel?

USER: My journey dates are from Oct 20 to Oct 22.

ASSISTANT: Ok, Is there any class preference for you?

USER: I prefer economy class.

ASSISTANT: May I know your connection limit please?

USER: I need a flag stop in between journey.

ASSISTANT: Do you have any other specification please?

USER: Yes, My return time is morning.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry Parker, there is no flight found as per your travelling details.

USER: Ok, that's not a problem. Thanks for your information.

ASSISTANT: Thank you for reaching us.