You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I serve you?

USER: I need your service in booking my flight ticket.

ASSISTANT: Sure, could you please mention your journey airport codes?

USER: New York, NY - LGA and San Francisco, CA - SFO are my airport codes.

ASSISTANT: Do you need a lay by within your journey?

USER: Yes, I need one lay by.

ASSISTANT: Please share your travelling dates.

USER: On 10/14 I want to start. And on 10/16 I want to return.

ASSISTANT: May I know your good name please?

USER: Jason King is my good name.

ASSISTANT: Thank you for providing your essentials. There is no flight found matching with your specifications.

USER: Ok, not an issue. Thanks for the information.

ASSISTANT: Thank you for reaching us.