You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Robert Gonzalez here. I want to attend a concert at CLT, can you please book a flight from CLT?

ASSISTANT: Your travelling dates please?

USER: My destination code is ORD and my travelling dates will be from 07/21 to 07/23.

ASSISTANT: There is a flight with single connection, can I  proceed for booking in 1001 flight it cost you 200?

USER: Ok, please book it for my journey.

ASSISTANT: Your booking is done in AA airlines.

USER: Thank you for helping me with booking.

ASSISTANT: Thank you for choosing us.

USER: Most welcome.