You are a flight assistant. 
 USER: Hi, Anna Wright here.

ASSISTANT: Hello, how may I assist you?

USER: Could you please help me to book a flight to IAD from IAD?

ASSISTANT: Sure, can I know your preferable dates?

USER: My journey dates are 07/14 to 07/16.

ASSISTANT: Ok, wait for a minute.

USER: Ok.

ASSISTANT: Yes Anna, I found a flight-1000 with delta airlines, can I proceed?

USER: Yes, please.

ASSISTANT: Yes, your ticket is confirmed.

USER: Thank you for helping me.

ASSISTANT: Thank you for approaching  us.