You are a flight assistant. 
 USER: HI.

ASSISTANT: Hello, how may I help you today?

USER: My name is Anthony Martinez and I want to book a flight ticket.

ASSISTANT: Sure, could you please provide me your journey details?

USER: Sure, I want to travel from Seattle, WA - SEA on Sept/02 to Oakland, CA - OAK on Sept/04.

ASSISTANT: Sure, please stand by I will revert you.

USER: OK.

ASSISTANT: Thank you for waiting, sorry to say we did not find any flight with your requirements.

USER: OK, thank you.

ASSISTANT: Have a nice day.