You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Brian King. I would like to travel from SEA to attend a business meeting in EWR, can you help me to make a flight reservation?

ASSISTANT: May I know your travel dates?

USER: My travel dates are 02/05 and 02/07.

ASSISTANT: Do you have any other specifications?

USER: I need a flight with business class.

ASSISTANT: Sorry for this inconvenience, I could not find any flight with your requirements.

USER: That's fine, thanks for your information anyways.

ASSISTANT: Thank you for reaching us.