You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I am Ashley Phillips here, I want to reserve my ticket from JFK to DTW, can you please help me?

ASSISTANT: I will assist you. May I know your travel dates?

USER: Sure, my willing dates of journey is from 02/21 to 02/23. Please make sure that the price limit is 500.

ASSISTANT: Ok, there is direct flight available. Can I book it?

USER: I want a connecting flight.

ASSISTANT: Sorry Ashley, there is no connecting flight available now.

USER: Ok, no problem. Thank you for your service.

ASSISTANT: Thank you for choosing our service.