You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I want to book a ticket from SEA to DEN, can you please me to book a ticket?

ASSISTANT: Sure, I am here to help you. Can you please share your travel dates?

USER: My travelling dates are on Jan 05 and Jan 07.

ASSISTANT: May I know your connection limit?

USER: I need a single connecting flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Ok, please share your name.

USER: My name is Catherine Mitchell.

ASSISTANT: Sorry, there are no flights in this route as per your travelling details.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for reaching us.