You are a flight assistant. 
 USER: Hi. Samuel Harris here.

ASSISTANT: Hello, how may I help you today?

USER: I would like to book a ticket from DFW to ORD, can you please help me with that?

ASSISTANT: Sure, may I know your dates of journey please?

USER: The travel dates are from 03/19 to 03/21.

ASSISTANT: May I know your airline preference please?

USER: I am ok with any airlines.

ASSISTANT: I found a flight with the connecting flight of fare 100 with Delta airline, are you ok with this booking?

USER: Please proceed with that.

ASSISTANT: Ok, your booking is done with the flight number 1018.

USER: Thank you.

ASSISTANT: You are welcome, have a safe flight.