You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am Catherine Green. I need to book a ticket to attend my friend's new shop for buying a car.

ASSISTANT: Ok.

USER: Could you please help me in booking a ticket from DCA to LAX?

ASSISTANT: Sure, I will help you. Could you please provide your dates of journey?

USER: My travelling dates are 01/30 and return on 02/01.

ASSISTANT: Do you need  lay by in between your journey?

USER: Yes, I need a Lay by.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: There is no connecting flight available based on your requirements.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for approaching us.