You are a flight assistant. 
 USER: Hi. Joseph Evans here.

ASSISTANT: Hello, how may I aid you today?

USER: Reserve a flight ticket for me that is for my airport codes HOU to PHL. I need a connecting flight.

ASSISTANT: Sure, I am here to help you out. Please share me your trip dates.

USER: My travelling dates for journey are 09/20 to 09/22.

ASSISTANT: Here is a flight matching your requirement and airfare is 100 in Southwest airlines, can I proceed with it?

USER: You can book it.

ASSISTANT: Your ticket has been booked with 1023 flight.

USER: Thank you.

ASSISTANT: Thank you for reaching us.