You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Barbara Lopez.

ASSISTANT: How can I assist you today?

USER: I have to attend a Music Concert at Charlotte, could you please help me with booking a flight ticket?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: I would like to take off on 01/19 and return on 01/21.

ASSISTANT: Please provide your airport codes that you want to travel.

USER: My source airport code is DEN and destination airport code is CLT.

ASSISTANT: Please give me a moment.

USER: Sure, take your time.

ASSISTANT: Thank you for waiting, there is a flight with price 100 and the connections 0 is available. Shall I confirm your ticket?

USER: I need a flight with connection 1.

ASSISTANT: There is no flights available with connections 1.

USER: That's ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you for reaching us, have a great day.