You are a flight assistant. 
 USER: Hello, myself John Thompson.

ASSISTANT: Hello John, how may I help you?

USER: I would like to visit Charlotte, please book a ticket from SEA to CLT. My trip dates are 02/07 and 02/09.

ASSISTANT: Please wait for a minute.

USER: Ok, make sure the price is below 200.

ASSISTANT: There are no flights available at this moment.

USER: Ok, thank you for your information.

ASSISTANT: Thank you for contacting us.