You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you now?

USER: I want to book a ticket from SFO to PHL, can you help me?

ASSISTANT: Ok, please share your travelling dates.

USER: My travel dates are June 28 and 30.

ASSISTANT: Do you need a direct flight?

USER: Yes, I prefer a direct flight.

ASSISTANT: May I know your other requirements?

USER: I have provided all my requirements.

ASSISTANT: Meanwhile, may I know your name?

USER: I am Ruth Turner.

ASSISTANT: I am sorry to say, there are no flights available for your journey.

USER: No problem, thanks for checking.

ASSISTANT: Thank you for choosing us Ruth Turner.