You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know your name please?

USER: I'm Richard Jackson.

ASSISTANT: Yes, how can I help you?

USER: I would like to go to an event held in Houston, so could you please book a ticket from OAK to HOU?

ASSISTANT: Sure, please tell your travelling dates?

USER: I would like to travel on 04/29 and return on 05/01.

ASSISTANT: There is a flight available with 1 connection, would you like me to book the ticket?

USER: Can you find a flight with 0 connections?

ASSISTANT: Sorry, there are no flights available with your request.

USER: That's ok. Thank you.

ASSISTANT: Thank you and have a nice day.