You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Can you book a flight ticket from ORD to PHL?

ASSISTANT: Sure, please provide me your preferable journey dates.

USER: My journey dates are from 08/28 to 08/30.

ASSISTANT: Do you have any other preference?

USER: Yes, I need a connecting flight.

ASSISTANT: Ok, can I have your name please?

USER: My name is Ashley Thompson.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that there is no flight available on your dates.

USER: Ok, No issues. Thank you.

ASSISTANT: Thank you for reaching us.