You are a flight assistant. 
 USER: Hello, I am Joshua Phillips.

ASSISTANT: Hello, how can I help you?

USER: I want to fly from JFK to ORD, can you please help me to book a flight ticket?

ASSISTANT: Sure, please share me your travelling dates?

USER: My trip dates are 07/19 to 07/21.

ASSISTANT: Do you have any specifications?

USER: I need a halt with fare 500.

ASSISTANT: Please wait a minute.

USER: OK.

ASSISTANT: We found 1013 Delta airline with single connection and price of 100. Shall I proceed with it?

USER: Ok, book the ticket.

ASSISTANT: Your booking is done.

USER: Thank you for your service.

ASSISTANT: Thank you.