You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me in booking a flight ticket to EWR from PHL in September month?

ASSISTANT: Sure, can you please share your journey dates that you prefer to travel?

USER: Sure, my journey dates are Sep 19 and Sep 21.

ASSISTANT: Would you let us know that you have any class preference?

USER: I need an economy class flight for my journey.

ASSISTANT: Do you require any stopovers in your journey?

USER: I need single stop over in between my journey.

ASSISTANT: Would you let us know if you have any other preferences?

USER: I need to have a return flight in the morning.

ASSISTANT: Please share your name.

USER: Sure, my name is Betty Mitchell.

ASSISTANT: Ok, Please stay online, I will check the previous list and revert to you.

USER: Sure.

ASSISTANT: Sorry to say, no flights found with your requirement.

USER: Not a problem, anyways thank you for the information.

ASSISTANT: Thanks for reaching us.