You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I help you?

USER: My name is Dorothy Edwards. I want to book a flight ticket on the occasion of my brother marriage. Can you please be my helping hand in doing this?

ASSISTANT: Sure, Can you please provide your journey details?

USER: OK. My travelling Origin is from TX - HOU on 10/19 to CA - SFO on 10/21. I have a price limit of 1000 with one connection.

ASSISTANT: Sorry, There are no flights found according to your details.

USER: OK. No issue. Thank you for your helping hand.

ASSISTANT: Thank you.