You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Barbara Davis.

ASSISTANT: How may I guide you?

USER: Can you please help me in booking my flight ticket from ORD to IAD?

ASSISTANT: Sure, could you please share your journey dates?

USER: My travelling dates are 07/26 and 07/28.

ASSISTANT: Please hold on a moment.

USER: Ok, sure.

ASSISTANT: Barbara, I found a flight for you in UA airlines with price 100. Can I proceed?

USER: Ok, please proceed.

ASSISTANT: Ok, your booking is confirmed with flight number 1010.

USER: Thank you.

ASSISTANT: Thank you for approaching us.