You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself David Martin.

ASSISTANT: How may I assist you?

USER: I need to travel Charlotte to meet my friends, can you please reserve flight ticket from PHX and CLT?

ASSISTANT: Sure, I will help you. Can you please provide your planned journey dates?

USER: My travelling dates are Dec,19 and Dec,21.

ASSISTANT: May I know your departure and arrival timings?

USER: My depart time should be in the evening.

ASSISTANT: Do you need a direct flight or a connecting flight?

USER: I need a connecting fight for my reservation.

ASSISTANT: May I know your airline preferences?

USER: Not an import in airline preference.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: David Martin, no flights has been found on your planned travel dates.

USER: That's ok, I will choose any other alternate source to travel my destination.

ASSISTANT: Thank you for approaching us.

USER: Thank you for searching the flights.