You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Christopher Smith.

ASSISTANT: How can I serve you?

USER: I want to travel from Oakland to New York for a business trip.Can you please help me to book a ticket?

ASSISTANT: Ok, Christopher Smith please provide me your travel dates and airport codes.

USER: My origin airport code is CA-OAK and destination airport code is NY-LGA. My departure date is 11/24 and return date is 11/26.

ASSISTANT: Wait for a second let me check if any flights available on your dates.

USER: Make sure my price limit is 5000 and connections limit is 0.

ASSISTANT: I couldn't find any flights on your requirements, is there anything else I can help you with? Ok, thanks for reaching us.

USER: Thank you for your information.

ASSISTANT: Have a nice day.