You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I'm planning to visit Oakland hills, can you book a ticket from DFW to OAK?

ASSISTANT: Sure. Are you looking for a flight with a lay-by option?

USER: Yes, I'm looking for single connected flight.

ASSISTANT: May I know your name please?

USER: My name is Brenda Taylor.

ASSISTANT: Tell me your travel dates please?

USER: Sure, my planned departure and return travel dates are 1st and 3rd of October.

ASSISTANT: Any other preferences?

USER: No, I don't have any other specifications.

ASSISTANT: Please wait. Thanks for waiting.

USER: It's ok, is there any flight available or not?

ASSISTANT: Thanks for your patience. I have found Frontier airlines which is a flight with a lay-by option.

USER: That's fine, proceed for booking.

ASSISTANT: Yes, I have confirmed your flight ticket.

USER: May I know the flight number?

ASSISTANT: Thank you and the flight number is 1008.

USER: Fine, thank you.