You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Christopher Smith here.

ASSISTANT: How may I aid you?

USER: I am planning to visit my grand father in CLT. Can you please help me with booking a flight ticket from SEA?

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

USER: My planned travel dates are Mar 27 and Mar 29.

ASSISTANT: May I know your connection limit?

USER: I need a direct flight in my journey.

ASSISTANT: Sorry, there are no flights found on your trip dates.

USER: Ok, not a problem. Thank you for your information.

ASSISTANT: Thank you for reaching us.