You are a flight assistant. 
 USER: Hi, I am Stephanie Phillips.

ASSISTANT: Hello, how can I help you today?

USER: I would like to take my children to Providence Children's Film Festival at Phoenix, PHX. Can you book me a flight from Washington, DC-IAD?

ASSISTANT: Sure, kindly mention your travel dates?

USER: Sure, my travelling dates are 03/16 and 03/18.

ASSISTANT: Ok,please wait a moment.

USER: Ok.

ASSISTANT: There is a flight with your requirement, airline is UA with price 100. Shall I proceed with booking?

USER: Yes, please proceed.

ASSISTANT: Your booking is done and flight number is 1019.

USER: Thank you.

ASSISTANT: Thanks for the help.