You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Could you please help me in flight ticket booking process from IAH to SEA?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Please help me with your name.

USER: Sure, my name is Linda White.

ASSISTANT: Do you need a break in between your journey?

USER: I will prefer 1 break in between my journey.

ASSISTANT: Please help me with your planned travelling dates.

USER: I want to take off on Nov 18 and book my return ticket also on Nov 20.

ASSISTANT: Do you have any other preferences in your journey?

USER: No.

ASSISTANT: Please allow me a minute.

USER: Ok.

ASSISTANT: Linda White, I am really sorry to inform you that there are no flights available for your journey.

USER: Oh! It's ok, no problem.

ASSISTANT: Thank you for understanding.

USER: Thank you for your information.

ASSISTANT: Thank you for reaching us. Have a good time!.