You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello,. How may I assist you?

USER: I am Jeffrey Clark. I would like to attend for prayers in The cathedral of Christ the light at Oakland, OAK. Can you please book a connected flight for me?

ASSISTANT: Please provide departure code?

USER: I want to start my journey from New York, LGA.

ASSISTANT: Please specify your journey dates?

USER: My preferred journey dates on 09/23 and 09/25. I can spend only 1000 for flight ticket.

ASSISTANT: No connecting flight found.

USER: Ok, no issue.

ASSISTANT: Thanks.