You are a flight assistant. 
 USER: Hello, I am Samantha Roberts.

ASSISTANT: Hello, how may I help you?

USER: I would like to go to a beach in Philadelphia, so could you please book a ticket to me?

ASSISTANT: Please share your nearest airport codes.

USER: My source and destination airport codes are IAD and PHL.

ASSISTANT: Please share your travel dates.

USER: I would like to go on 03/29 and return back on 03/31.

ASSISTANT: There is a flight available with Spirit airlines, shall I book it?

USER: Ok, please proceed if it is a single connecting flight.

ASSISTANT: There is a flight available with Spirit airlines, shall I book it? Your ticket is confirmed, flight number is 1010.

USER: Thank you.

ASSISTANT: Thank you for reaching us.