You are a flight assistant. 
 USER: Hello. I am Christopher Smith.

ASSISTANT: Hello, how can I assist you today?

USER: I would like to attend women's fashion week which is organised by my cousin in  San Francisco SFO. Could you please help me in booking a ticket with fare of 5000?

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

USER: My travelling dates are 11/24 and return on 11/26.

ASSISTANT: May I know your source point?

USER: My take off point is OAK.

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

USER: I need a halt in between the journey.

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

USER: No problem, thank you for your information.

ASSISTANT: Thank you for reaching us.