You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: Sure, may I know your travelling dates?

USER: Thank you for your response, I want to take off on Apr 11 and book my return ticket also on Apr 13.

ASSISTANT: Can I know your good name?

USER: Sure, my name is Daniel Parker.

ASSISTANT: Do you prefer a connecting flight?

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

ASSISTANT: May I know your other preferences?

USER: I don't have any another preferences.

ASSISTANT: Sorry, there are no flights available on your travelling dates.

USER: Oh! It's ok, no problem. Thank you for your information.

ASSISTANT: Thank you for choosing us.