You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Betty Wilson here. Please help me out in booking the ticket from DFW TO OAK.

ASSISTANT: Sure, we are here to help you with that. May I know your travelling dates?

USER: My trip dates will be May 9 to May 11.

ASSISTANT: Do you have any particular time for departing and returning?

USER: My return time must be in the morning.

ASSISTANT: Do you have any other specifications?

USER: I want single connected flight in normal cost airlines.

ASSISTANT: There is no flight found on this route as per your details.

USER: That's ok, thank you.

ASSISTANT: Thank you for reaching us, have a great day.