You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I address you?

USER: I am Ashley Hall. I am planning to visit Millennium Park at Chicago, could you please help me with booking a flight ticket from PHL to ORD?

ASSISTANT: Sure, please let me know your trip dates.

USER: I would like to depart on July 31st and return on Aug 2nd.

ASSISTANT: How many connections do you need?

USER: I am looking for a connecting flight.

ASSISTANT: At what time would you like to depart and return?

USER: Make sure that my return time must be afternoon.

ASSISTANT: Ok, please allow me a moment.

USER: Sure, take your time.

ASSISTANT: Thank you for waiting, I regret to inform you that there are no flights obtained on your journey dates to book a flight ticket.

USER: Ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you for reaching us.