You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

USER: I am planning to meet my colleague in New York, so please book a flight ticket from CLT to EWR.

ASSISTANT: Sure, let me know your travelling dates?

USER: I want to fly on Aug 01, return on Aug 03.

ASSISTANT: Do you prefer direct flight or connecting flight?

USER: I need a connecting flight.

ASSISTANT: Is there any other preferences?

USER: No.

ASSISTANT: May I know your good name?

USER: My name is Brian Turner.

ASSISTANT: Thanks for your details, there is no flight found on your desired journey routes.

USER: No problem, thank you.

ASSISTANT: Thank you for reaching us.