You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be at your service today?

USER: I am looking for a flight from ORD to EWR, can you help me?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My trip dates are 15 to 17 of Aug.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight.

ASSISTANT: Please help me with your name for booking.

USER: I am Debra White.

ASSISTANT: I am sorry no flights found on your route.

USER: Oh! that very sad to hear, thank you.

ASSISTANT: Thank you for choosing us.