You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you for the day?

USER: I want to travel to DCA, can you book a flight ticket from JFK?

ASSISTANT: When you are willing to travel?

USER: My trip is in July from 22nd to 24th.

ASSISTANT: Do you have any class preference?

USER: I prefer economy class to travel.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a connecting flight.

ASSISTANT: May, I know your good name?

USER: I am Donald Martin.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: We found 1000 Delta airlines with single connection with price 100. Shall I proceed with the booking?

USER: Yes proceed.

ASSISTANT: Your, booking has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.