You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hand today?

USER: Can you please help me in booking a flight ticket from OAK to IAH?

ASSISTANT: Sure, we are glad to help you. When are you planning to go and return back from your journey?

USER: I want to fly on Aug 29 and return on Aug 31.

ASSISTANT: Do you need any flag stop in between journey?

USER: I need a single connection.

ASSISTANT: May I know your good name please?

USER: Myself Raymond Hernandez.

ASSISTANT: Is there any other specifications regarding your journey?

USER: No.

ASSISTANT: Ok, please wait a moment. let me search a flight for you.

USER: Ok.

ASSISTANT: Thanks for waiting, there are no flights available at this moment matching your particulars.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for your presence. We hope to serve you again.