You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I need to travel from IAD to OAK, can you help me in doing that?

ASSISTANT: Sure, may I know your planned trip dates?

USER: My trip dates are Aug 19 to 21.

ASSISTANT: Do you have any connection limit?

USER: I need a single connecting flight.

ASSISTANT: Any other requirements to be met?

USER: I prefer economy class.

ASSISTANT: May I know your good name?

USER: Katherine Hall here.

ASSISTANT: American airlines flight- 1006 of price 200 with connection in economy class matches your given details, shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Ok, your flight ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.