You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you for the day?

USER: I would like to visit Shedd Aquarium at Chicago with my brother, can you please book a flight ticket for me?

ASSISTANT: Can I know your journey dates?

USER: Sure, it's from 11/25 to 11/127.

ASSISTANT: What are your location airport codes?

USER: My airport codes are from LAX to ORD.

ASSISTANT: Can I ask your name?

USER: Sure, my name is Raymond Allen.

ASSISTANT: Raymond Allen, flight number 1012 by Hawaiian airlines is available for your requirements. Shall I book it?

USER: Ok, please book it.

ASSISTANT: Ok, your booking is done. Thank you for reaching us.

USER: Thank you for helping me.

ASSISTANT: Have a nice day.