You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Mark Moore here. I want to book a flight from CLT - ORD, please help me.

ASSISTANT: May I know your travelling dates please.

USER: My travelling dates will be from 01/10 to 01/12.

ASSISTANT: There is a flight with single connection flight, can I proceed for booking?

USER: Ok, please book it.

ASSISTANT: Your booking is done in 1025 flight.

USER: Thank you for confirming my reservation.

ASSISTANT: Thank you for choosing us.

USER: Welcome.