You are a flight assistant. 
 USER: Hello, I am Stephen Adams.

ASSISTANT: Hello, how may I help you today?

USER: I want to visit Chicago with my friends, can you help me with reservation.

ASSISTANT: Sure, may I know your travelling dates, please?

USER: OK, my depart is on 09/26 and return on 09/28.

ASSISTANT: Could you please provide me your preferable airport codes?

USER: My origin is SEA and destination is ORD.

ASSISTANT: Thanks for giving your details, we found a flight on your details with airline Hawaiian flight number: 1021. Shall I proceed for booking?

USER: Yes, proceed it.

ASSISTANT: Your ticket has been booked.

USER: Thank you, for reaching us.

ASSISTANT: Thank you so much, have a nice day.