You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you please book a ticket from ORD to JFK? As I need to attend a wedding.

ASSISTANT: Sure, may I know your planned travel dates please?

USER: Sure, my planned departure and return travel dates are 19th and 21st of July.

ASSISTANT: Can I have your name please?

USER: My name is Emily Jones.

ASSISTANT: Do you need a connecting flight or a direct flight?

USER: I prefer both.

ASSISTANT: May I know your other preferences?

USER: I don't have any other specifications.

ASSISTANT: Emily Jones, 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.