You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you for today?

USER: I am looking to travel to Boston, can you please help me to find a flight in business class?

ASSISTANT: I am glad to help you in booking your flight ticket. Can you please provide your planned dates of journey?

USER: Thank you. The travel dates are Apr 16 and Apr 18.

ASSISTANT: Can you please provide your source of journey?

USER: The source airport codes is PHX.

ASSISTANT: Would you like to travel in a direct flight or in a connected flight?

USER: I need to travel in a connecting flight.

ASSISTANT: Do you have any other requirements for your journey?

USER: No, I didn't have any other requirements.

ASSISTANT: Please provide your name for booking purpose.

USER: My name is Angela Clark.

ASSISTANT: I feel sorry to say this Angela Clark, there is no flight which travels to your region on your planned dates of journey.

USER: It's ok, not a problem with that. I will choose some other source to travel. Anyhow thanks a lot for searching the flights.

ASSISTANT: Ok. You are welcome, thank you for reaching us.