You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I want to attend for my niece's marriage in Houston, so please book a flight ticket from SFO to HOU.

ASSISTANT: Sure, let me know your planned journey dates?

USER: I want to fly on Mar 02, return on Mar 04.

ASSISTANT: Do you prefer direct or connecting flight?

USER: I want direct flight.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: Can I know your name?

USER: My name is Amanda Rodriguez.

ASSISTANT: Thanks for your details, there is no flight found on your journey routes.

USER: No problem, thank you.

ASSISTANT: Thank you for availing us, have a nice day.