You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am David Green.

ASSISTANT: How can I assist you at this moment?

USER: Can you help me in booking from CLT to ORD, as there is a sports meet?

ASSISTANT: Sure, I will help you with this. Can you please provide your journey dates?

USER: My journey dates are May 10 to May 12.

ASSISTANT: Do you have any specifications for this trip?

USER: I need a connecting flight.

ASSISTANT: UA airlines with connecting flight is available on this route with a ticket fare of 200, shall I book your ticket?

USER: You can reserve it.

ASSISTANT: David Green, your ticket is booked in flight number 1005.

USER: Thank you.

ASSISTANT: Thank you and have a safe journey.