You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How best can I aid you at this moment?

USER: I want to book the flight ticket from CLT to SEA. Can you please help me?

ASSISTANT: Sure, I am perky to help you in booking.

USER: Thank you.

ASSISTANT: May I know your dates of travel, please?

USER: My travel dates are Jan 12 and Jan 14.

ASSISTANT: Do you have any limit on maximum number of connections?

USER: I need a single connection flight.

ASSISTANT: May I know about your class preference for your journey?

USER: I prefer to travel in economy class.

ASSISTANT: Let me know your departure and arrival timings.

USER: Any time is ok for me.

ASSISTANT: Do you have any airline preference for your flight journey?

USER: No.

ASSISTANT: May I know your name to proceed further for documentation purpose?

USER: My name is Samantha Williams.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Sorry to say that, there are no flights running on your routes according to your specifications.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for choosing us, have a good day.