You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know how best I can help you today?

USER: Jacob Thomas here. I want to meet my sister-in-law, please book my ticket from ORD to IAD.

ASSISTANT: Sure, please share your travelling dates?

USER: My itinerary dates are Apr 20 and Apr 22.

ASSISTANT: We are pleased to inform you that we have found a UA airline, flight number-1018 connections-1 and price limit is 100.

USER: Please book my ticket.

ASSISTANT: Your booking is done.

USER: Thank you for the help.

ASSISTANT: Your welcome.