You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How may I help you?

USER: I am Dorothy Taylor, help me in booking my flight to attend my friend marriage at New York.

ASSISTANT: Surely, I will help you. May I know the travel dates?

USER: I am planning to travel from 03/16 to 03/18.

ASSISTANT: Please help me with your journey codes.

USER: My source is CA-LAX. My landing point is NY-LGA.

ASSISTANT: Please give a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: No problem, thank you for your assistance.

ASSISTANT: Thank you for availing us.