You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I guide you?

USER: I am David Clark, I would like to travel from PHL to CLT, so can you help me for this?

ASSISTANT: Sure, I am here to help you. Could you please share your journey dates to search a flight availability?

USER: I am going to start my journey on 01/25 and return on 01/27.

ASSISTANT: Please wait for a moment.

USER: OK.

ASSISTANT: There is a flight-1028 is available for you, shall I proceed?

USER: Proceed to booking.

ASSISTANT: Ok, your booking is done.

USER: Thank you for confirming my flight ticket.

ASSISTANT: Welcome.