You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I want to book a flight ticket from EWR to IAH. Could you help me in booking?

ASSISTANT: When do you want to start and return on?

USER: My travelling dates are from Aug,05 and Aug,07.

ASSISTANT: Do you need a connecting flight?

USER: Yes, I prefer one connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Can I know your good name?

USER: Myself Kathleen Evans.

ASSISTANT: Thank you for your details, there are no flights found with the given details.

USER: That''s k, thank you for the information.

ASSISTANT: Thank you.