You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you at this moment?

USER: I am Robert Nelson, planning to visit Seattle. Can you please book me a ticket from ORD to SEA?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: My planned dates of journey are from 01/02 to 01/04.

ASSISTANT: Please wait for a moment, I will check the availability.

USER: Sure, I will wait for your response.

ASSISTANT: There is a direct flight available, shall I proceed?

USER: Please search for 1 connection limit flight on this route.

ASSISTANT: Sorry, there is no connecting flight is available.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: You are welcome, have a nice day.