You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Edward Wilson. I need to book a ticket from SEA to CLT to meet my wife. Could you please help me in doing that?

ASSISTANT: Sure, may I know when are you willing to travel?

USER: My travelling dates are 01/15 and return on 01/17.

ASSISTANT: Do you need a lay by?

USER: I need a direct flight from Seattle to Charlotte.

ASSISTANT: Thank you for sharing your details. There are no flights available at this moment on your required dates.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for opting us.