You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you?

USER: I am planning to attend music concert at PHX, can you please help me with booking a flight ticket from CLT?

ASSISTANT: Sure, May I know the travelling dates?

USER: I would like to take off Sept 21 and return on Sept 23.

ASSISTANT: Do you have any connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Is there any other requirements?

USER: I don't have any other requirement.

ASSISTANT: May I know your name?

USER: My name is Joseph Adams.

ASSISTANT: Please wait a minute.

USER: Sure, take your time.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for availing us.

USER: You are welcome.