You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I'm planning to visit Georgia aquarium, can you book a ticket from SFO to ATL?

ASSISTANT: Sure, I will help you. Can I have your planned travel dates please?

USER: Sure, my planned departure and return travel dates are 6th and 8th of December.

ASSISTANT: May I know your name please?

USER: My name is Ronald Martin.

ASSISTANT: Do you need a connecting flight?

USER: No, I prefer direct flight.

ASSISTANT: May I know your class preference?

USER: I'm ok with any class.

ASSISTANT: Do you have any other preferences?

USER: No, I don't have any other specifications.

ASSISTANT: Ronald Martin, no flights has been found on your planned travel dates.

USER: That's ok, thank you for giving the information.

ASSISTANT: Thank you for approaching us.