You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me in booking a flight ticket from IAD to SEA?

ASSISTANT: Sure, let me know your travelling dates?

USER: Sure, my travel dates are from Apr 09 to Apr 11.

ASSISTANT: May I know your connection limit?

USER: I don't have any specifications.

ASSISTANT: Can I know your name?

USER: Myself Dorothy Johnson.

ASSISTANT: Thanks for your details, there is no flight found on your desired journey routes.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for approaching us.