You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

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

ASSISTANT: Kindly, mention your planned trip dates.

USER: I would like to take off on Dec 29 and return on Dec 31.

ASSISTANT: Do you prefer either connecting or direct flight?

USER: I am looking for a connection flight.

ASSISTANT: Is there any airline preference?

USER: No, but I prefer economy class.

ASSISTANT: Are there any other requirements?

USER: I would like to depart during evening time.

ASSISTANT: Please forward your name.

USER: My name is Ronald Jackson.

ASSISTANT: Sorry to inform you that, there are no flights found on your specified trip dates.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you for availing us.