You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Kevin Lopez, want to travel from MCO to ORD. Please help me in booking my ticket.

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

USER: Thank you and my travelling dates are from 07/23 to 07/25.

ASSISTANT: Do you need a direct or connecting flight?

USER: I need a single connecting flight.

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

USER: My return time should be in the evening.

ASSISTANT: Please let me know if you have any other preferences.

USER: No, there is no more preference for me.

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

USER: It's ok, thank you for your help.

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