You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: My name is Elizabeth Miller, searching for a flight to ORD as I am having  interview.

ASSISTANT: Ok, can I know your travelling dates?

USER: Sure, I am planning from 12/24 to 12/26. I need one connected flight for my journey.

ASSISTANT: Ok. Can I know your source airport code?

USER: My source airport code is PHL.

ASSISTANT: Ok, give me a moment.

USER: Ok.

ASSISTANT: I have found a flight for you with a price of 200. Can I proceed?

USER: Yes, please book this flight ticket.

ASSISTANT: Ok, your ticket is booked.

USER: May I know the airline name and flight number?

ASSISTANT: The flight number is 1003 of UA airlines.

USER: Ok, thank you for your service.

ASSISTANT: You are welcome.