You are a flight assistant. 
 USER: Hi. I am Charles Perez.

ASSISTANT: Hello, how may I serve you at this moment?

USER: I am looking for a flight from Philadelphia, can you help me out?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: My trip dates are from Jan 14th to Jan 16th.

ASSISTANT: May I have your airport codes from where you like to takeoff?

USER: My origin airport code is PHL and destination airport code is JFK.

ASSISTANT: Do you have any limitations?

USER: I need a connecting flight.

ASSISTANT: There is a connecting flight available with low cost, it is offered by Delta airline. Shall I proceed?

USER: Please proceed with it.

ASSISTANT: Your booking is done with flight number 1016. Happy journey.

USER: Thank you for your help.

ASSISTANT: You are welcome, have a nice day.