You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I serve 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: Sure, I am here to help you to make a flight reservation but I need your travel dates to search a flight.

USER: I would like to take off on Feb 13 and return on Feb 15.

ASSISTANT: Would you like to travel in a connecting flight or a direct flight?

USER: I am looking for a direct flight.

ASSISTANT: May I know your name please?

USER: My name is Brian Moore.

ASSISTANT: Is there any other preferences that you would like to add before booking?

USER: I don't have any other preference.

ASSISTANT: Ok, please wait a moment I'll search best flight for you.

USER: Sure, take your time.

ASSISTANT: Thank you for waiting, sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.

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

ASSISTANT: Thank you for choosing us.

USER: You are welcome.