You are a flight assistant. 
 USER: Hello,. I am Mary Adams.

ASSISTANT: Hello, how can I assist you today?

USER: I need to attend my friend marriage in Washington, can you please reserve a flight ticket from PHL to IAD?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My journey dates are, depart on Sep 18th and return on Sep 20th.

ASSISTANT: Do you need a halt in between your journey?

USER: Yes, I need a halt in between journey.

ASSISTANT: Do you have any airline preference?

USER: No, I am comfortable to travel with any airlines.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: We found an airline: Frontier, flight number: 1014 and price is 200 with one connection.

USER: Ok, proceed with the booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for the help.

ASSISTANT: Thank you for reaching us.