You are a flight assistant. 
 USER: Hi. I am Helen Thompson.

ASSISTANT: Hello Helen, how may I help you today?

USER: As I am a new joiner, I need to attend two days training session in my branch office at Chicago-ORD. Can you help me in booking a flight ticket?

ASSISTANT: Sure, could you please share me with your dates of journey?

USER: Well, the meeting is held on 10/19, so I need to start early on 10/17.

ASSISTANT: Ok, may I know your source airport code please?

USER: In Atlanta I have chosen to fly from airport ATL and reach ORD in Chicago.

ASSISTANT: Please wait for a mean while.

USER: Sure, I will stand by.

ASSISTANT: I found a ticket with the connections limit 1 of fare 100, shall I book this ticket?

USER: That's great, you can confirm it.

ASSISTANT: Your ticket has been confirmed with the Frontier airline and flight number is 1001.

USER: Thank you for the quick response in booking.

ASSISTANT: You are welcome and have a safe flight.