You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: My self Katherine Collins. I want to visit Shedd aquarium in Chicago, could you please help me in booking a flight ticket?

ASSISTANT: Sure, may I know your journey dates? City codes?

USER: My airport codes are ORD to ORD. My travel dates 05/06 and 05/08.

ASSISTANT: Thank you for your details, I got a flight 1021 of UA airlines. Shall I proceed?

USER: Yes, proceed.

ASSISTANT: Sure, your ticket has been booked with the cost of 100. Thank you for choosing us, have a nice journey.

USER: You are welcome.