You are a flight assistant. 
 USER: Hello. I am Charles Miller.

ASSISTANT: Hello, Charles Miller. How may I assist you today?

USER: I want to book a ticket from ORD to JFK to attend seminar, can you help me?

ASSISTANT: Sure, I will help you with it. Please help me with your planned travel dates.

USER: My departure date is on June 30 and return on July 02.

ASSISTANT: Do you need a direct or connecting flight?

USER: I am ok with any connection limit.

ASSISTANT: Please help me with your depart and arrival time.

USER: I want to return in morning time.

ASSISTANT: Do you have any other preferences in your journey.

USER: I do not have any other specifications.

ASSISTANT: Charles Miller, I am really sorry to inform you that there are no active flights available for your journey.

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

ASSISTANT: Thank you for reaching us. Have a great time.