You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I need your help in booking a flight ticket.

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

USER: Betty Wright is my good name.

ASSISTANT: May I know your source and destination airports codes please?

USER: MCO and SFO are my in and out airport codes.

ASSISTANT: Ok, may I know your travelling dates please?

USER: June 16 and 18 are my scheduled travelling dates.

ASSISTANT: Ok, may I know your connection limit please?

USER: I need a stop-over in my journey.

ASSISTANT: Do you prefer any specific class preference?

USER: I need you to check for a economy class.

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

USER: That's ok. Thank you.

ASSISTANT: Thank you for reaching us.