You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I want to travel from SEA to ORD. Can you help me to book a flight ticket?

ASSISTANT: Sure, may I know your planned travel dates?

USER: I want to fly in the flight on Jan 27 and Jan 29.

ASSISTANT: Do you have any limits on number of connections?

USER: I am looking for a direct flight.

ASSISTANT: Do you have any another specifications on your journey?

USER: No.

ASSISTANT: May I know your name for the booking process?

USER: Susan Martin.

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

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: Welcome, thank you for reaching us.