You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I serve you today?

USER: I want to travel to Philadelphia, PA -PHL from Washington DC - IAD on 09/21 to report my joining. Can you help me with that?

ASSISTANT: Yes, May I know the arrival day?

USER: Sure, it should be on 09/23.

ASSISTANT: Thank you for your details, We are glad to inform you that according to your journey dates we found a flight. The details of the flight are AA airline with single connection of price 100.

USER: Ok, proceed for booking with this airline.

ASSISTANT: Ok, May I know your name?

USER: Nancy Carter is my name.

ASSISTANT: Thank you, your ticket has been reserved.

USER: Ok, thank you for your service.

ASSISTANT: Have a safe journey.