You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Amy Lewis.

ASSISTANT: How can I aid you for the day?

USER: Can you please aid me in making an airline reservation from JFK to PHL?

ASSISTANT: Sure, I am here to help you. Could you please provide your journey dates?

USER: My journey dates are Apr 10th and Apr 12th.

ASSISTANT: Do you have any connection limit for this trip?

USER: Yes, I need a flight with single connection.

ASSISTANT: Do you have any specific depart and arrival time for this journey?

USER: The depart time should be afternoon.

ASSISTANT: Do you have any other specification for this trip?

USER: I will prefer to travel in an economy class. The airline should be Normal-cost.

ASSISTANT: Amy Lewis, there are no flight services available with your preferences on this route.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for contacting us.