You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Andrew Turner here.

ASSISTANT: How can I assist you?

USER: Please help me out in booking the ticket from DFW to IAD.

ASSISTANT: Ok, may I know your travelling dates?

USER: My trip dates will be 06/20 to 06/22.

ASSISTANT: Here is a connecting flight ticket with fare 100 and 1015 as flight number in economy class. Shall I proceed with booking?

USER: Please proceed further.

ASSISTANT: Ok, your ticket is confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.