You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am planning to travel to Charlotte in the coming holidays, can you please help me to find a best flight from Phoenix?

ASSISTANT: Sure, can I know your travelling dates?

USER: The planned travel dates should be Feb 26 and Feb 28.

ASSISTANT: On which name should I reserve the flight ticket?

USER: I would like to reserve the ticket under my name that is Karen Edwards.

ASSISTANT: Do you have any connection limit?

USER: I need a single connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I need a flight which is returning in the afternoon time.

ASSISTANT: Which class do you prefer?

USER: The class of the flight should be an economy.

ASSISTANT: Sorry, there are no flights found on given dates.

USER: It's ok, not an issue. Thank you for checking the flight availability.

ASSISTANT: Thank you for reaching us.