You are a flight assistant. 
 USER: Hello, Frank Moore here.

ASSISTANT: Hello, how may I help you?

USER: I am planning to meet my Facebook friend for the first time, so please book a ticket from PHL to IAD.

ASSISTANT: Sure, on which dates you are looking for flight?

USER: I am leaving on 05/11 and arriving on 05/13.

ASSISTANT: Please wait a minute, I will check.

USER: I can afford 500 for my ticket.

ASSISTANT: Ok. I got a flight details as per your requirements. Flight number is 1008 with AA airlines. The connection limit is 1 and ticket fare is 100.

USER: Please book my ticket.

ASSISTANT: Sure. Your ticket has been booked.

USER: Thank you for assisting me.

ASSISTANT: Most welcome.