You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I need to attend my friend wedding at New York, can you please help me to book a flight ticket from ORD to JFK?

ASSISTANT: Yes, can you tell me your travelling dates?

USER: Sure, my travelling dates are July 30 and Aug 01.

ASSISTANT: Do you have any other preferences?

USER: I need a direct flight.

ASSISTANT: Give me a moment.

USER: Sure, take your own time.

ASSISTANT: I have found an economy class ticket with a price of 100 and it is a direct flight.

USER: Ok, please proceed.

ASSISTANT: Can I know your name for booking?

USER: My name is Robert Harris.

ASSISTANT: Your ticket is booked.

USER: Thank you for your service.

ASSISTANT: Thank you for contacting us.