You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Ruth King.

ASSISTANT: How may I assist you?

USER: I am looking for a flight from PHX to LGA, can you please help me to book a flight ticket?

ASSISTANT: Sure, I am here to help you out. May I know your travelling dates please?

USER: Sure, my itinerary dates are May 15 and May 17.

ASSISTANT:  Do you prefer a lay by in between your journey?

USER: Yes.

ASSISTANT: Wait a moment please.

USER: Ok, I will wait for your response.

ASSISTANT: Ruth King, we regret to inform you that there is no reservation found on your name in our records.

USER: Please check for the flight for booking?

ASSISTANT: There is no flight available in your route.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for reaching us.