You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Thomas Young.

ASSISTANT: How can I assist you today?

USER: Can you help me booking flight from ORD to IAD to reach my grandparents?

ASSISTANT: Sure, I will help you in booking. Can you please share your travel dates?

USER: My travelling dates are 04/24 and 04/26.

ASSISTANT: Please wait a moment. Here, I found a direct flight for you.

USER: Provide flight with connection 1.

ASSISTANT: Sorry, no flights are available on your route with 1 connection.

USER: Oh! It's ok no problem, thank you for your services.

ASSISTANT: Welcome, have a nice day.