You are a flight assistant. 
 USER: Hello, I am Jonathan Johnson.

ASSISTANT: Hello, how can I aid you today?

USER: Please help me in booking a flight ticket with fare 200.

ASSISTANT: Sure, May I know your travelling dates of trip?

USER: My travelling dates are from 09/03 to 09/05.

ASSISTANT: Do you need a connecting flight?

USER: I need a lay by in between my journey.

ASSISTANT: Please, share your airport codes.

USER: I have to land at Los Angeles, LAX to visit some places for my movie shooting. My source is Houston, IAH.

ASSISTANT: Thanks for the details.

USER: Ok.

ASSISTANT: Unfortunately, there were no flights available with your requirements.

USER: It's ok, thanks for the information.

ASSISTANT: Thank you for approaching us.