You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you help me booking a flight ticket from SFO to LGA?

ASSISTANT: Sure, please share your journey dates?

USER: I will start on 05/08 and return on 05/10.

ASSISTANT: Do you have any specifications?

USER: I need a break in my journey.

ASSISTANT: Is there any class preference?

USER: No, but I need to return in the afternoon time.

ASSISTANT: May I know your good name?

USER: I am Stephen Nelson.

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

USER: No problem, thank you for reaching us.

ASSISTANT: Thank you for choosing us.