You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you?

USER: I want to book a ticket from EWR to LAX, can you help me?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: My trip dates are Sept 22 and 24.

ASSISTANT: Do you have any preferences?

USER: I prefer connecting flight.

ASSISTANT: Sorry, there is no flight available with your requirements.

USER: No problem.

ASSISTANT: May I know your name please?

USER: I am Brian Young.

ASSISTANT: Thank you for reaching us.

USER: Thanks for checking.