You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Helen Carter.

ASSISTANT: How may I assist you?

USER: Can you help me in booking the ticket from EWR to HOU?

ASSISTANT: Ok, may I know your trip dates?

USER: My planning dates are from 08/03 to 08/05.

ASSISTANT: Southwest airline providing service to you with connection 1 and price 200.

USER: I need a direct flight.

ASSISTANT: Sorry, there is no direct flight for you.

USER: That's fine. Anyway, thank you.

ASSISTANT: Ok, thanks for contacting us.