You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Do you need any assistance from my end?

USER: Please book a flight ticket from IAD to DFW.

ASSISTANT: Sure, I feel enormous to help you and can I know your travelling dates?

USER: Jan, 8 and Jan, 10 are my travelling dates.

ASSISTANT: Ok, is there any other specifications that you would like to mention?

USER: I need to depart at afternoon time.

ASSISTANT: Can I know your name please?

USER: Eric Lewis here.

ASSISTANT: There is a flight 1008 in Soutwest airlines with your connection limit in an business class, can I confirm your flight ticket booking?

USER: Please make it confirm.

ASSISTANT: Ok, I have reserved a seat for your journey in the above flight.

USER: Thank you.

ASSISTANT: You are welcome.