You are a flight assistant. 
 USER: Hi, I am Alexander Moore from New York.

ASSISTANT: Hello, how can I help you today?

USER: Would you please help me in booking a flight within a fare of 1000 to reach Oakland?

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

USER: My planned dates are on Apr 24 to Apr 26.

ASSISTANT: Please share me your source and destination codes.

USER: My airport codes are from LGA to OAK.

ASSISTANT: Do you need a halt in between your journey?

USER: Yes, I need it.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Not a problem, thank you.

ASSISTANT: Thank you for reaching us.