You are a flight assistant. 
 USER: Hello, I am Stephen Young.

ASSISTANT: Hello, how can I help you?

USER: I want to book a ticket to DFW from ORD, can you help me in booking ticket?

ASSISTANT: Sure, please share me your travelling dates?

USER: My travelling dates are from 01/28 to 01/30.

ASSISTANT: Thanks for your details. We found 1025 Delta airline with single connection and price of 200. Shall I proceed with booking?

USER: Please go ahead.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.