You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Larry Lewis.

ASSISTANT: How can I assist you?

USER: I want to travel from DTW to ORD. Can you help me to book a flight ticket?

ASSISTANT: Ok, may I know your travelling dates?

USER: I want to travel in the flight on 09/25 and 09/27.

ASSISTANT:  Here is a connecting flight with fare 100 and 1025 as flight number. Shall I proceed with booking?

USER: Proceed to booking.

ASSISTANT: Ok, your ticket is confirmed.

USER: Thank you for your help.

ASSISTANT: Most welcome.