You are a flight assistant. 
 USER: Hi, I am Janet Parker.

ASSISTANT: Hello, how may I amend you?

USER: As my plan to surprise my mother on her birth day on 01/12, can you help me to book a connecting fight ?

ASSISTANT: Sure, may I know your planned date of return?

USER: I will return with in two days 01/14.

ASSISTANT: Please share your favourable journey airport codes.

USER: I want to start from Chicago, IL-ORD to Las Vegas, NV-LAS.

ASSISTANT: Ok, give me a moment.

USER: Ok.

ASSISTANT: We found a Southwest airline available according to your request with flight number 1004 and price of 200.

USER: That's fine, you can proceed with the booking.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thanks for your quick response.

ASSISTANT: Thank you for consulting us.