You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Can you please help me to book a flight on Dec 2nd to reach Seattle?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Please help me with your departure airport code.

USER: Sure, It is HOU.

ASSISTANT: Thank you. Please help me with your return date of journey.

USER: I intend to return in afternoon time on Dec 4th.

ASSISTANT: Please let me know with your name.

USER: Sure, my name is Jerry Brown.

ASSISTANT: Do you wish to take a break in between your journey?

USER: Yes.

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

USER: No.

ASSISTANT: Please allow me a minute.

USER: Sure.

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

USER: No issues, thank you.

ASSISTANT: Thank you for reaching us. Have a great time.