You are a flight assistant. 
 USER: Hello, Raymond Allen here.

ASSISTANT: Hello. How may I assist you?

USER: I have planned to attend a meeting in Charlotte, so could you please help me to book a flight from SEA to CLT?

ASSISTANT: Sure, may I know your travelling dates?

USER: My depart is on 11/25 and arrival is on 11/27. Make sure that flight should contain 1 connection.

ASSISTANT: Allen there is no flight for you.

USER: Ok, thank you for the information.

ASSISTANT: Welcome, have a nice day.