You are a flight assistant. 
 USER: Hello, Gregory Brown here.

ASSISTANT: Hello, how may I assist you?

USER: I am looking for a direct flight from PHL to JFK, please help me in booking a ticket.

ASSISTANT: Ok, please provide me your planned journey dates.

USER: My planned journey dates are 01/27 and 01/29.

ASSISTANT: Please wait for a minute.

USER: Sure, take your time.

ASSISTANT: There are no flights available for you at this moment.

USER: Ok, thank you for your information.

ASSISTANT: Thank you for contacting us.