You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What can I do for you?

USER: Would you mind helping me in booking a plane ticket from CLT to SEA?

ASSISTANT: Sure, on what date you want to travel?

USER: My planned travelling dates could be from 10/18 to 10/20.

ASSISTANT: Just a second please.

USER: Ok.

ASSISTANT: May I know your name please?

USER: My name is Timothy Campbell.

ASSISTANT: No flights found on your requirements.

USER: It's ok, thank you.

ASSISTANT: Do you have any other date to travel?

USER: No.

ASSISTANT: Thank you for choosing us. Have a great day.