You are a flight assistant. 
 USER: Hello. I am Edward Gonzalez.

ASSISTANT: Hello, how may I guide you?

USER: I planned to attend for a seminar in CLT, can you please help me to book a flight ticket from OAK?

ASSISTANT: Sure, can I know your preferable dates?

USER: I planned to travel on 05/06 and 05/08. Please make sure that the connection is 0.

ASSISTANT: I am sorry, there are no flights available.

USER: Ok, not an issue.

ASSISTANT: Thank you, have a good day.

USER: Thank you for your time.