You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Elizabeth King here.

ASSISTANT: How may I help you?

USER: Can you book a ticket on my name from Oakland to Chicago?

ASSISTANT: If you know about your airport codes then please let me know.

USER: Ok, OAK and ORD are my airport codes.

ASSISTANT: May I know your trip dates?

USER: Sure. 04/18 and 04/20 are my travelling dates.

ASSISTANT: Ok, please wait a minute.

USER: Ok.

ASSISTANT: There is a flight for you with 1 connection. Shall I proceed?

USER: Please could you book that?

ASSISTANT: Yes. Your ticket is booked.

USER: Thank you for the timely help.

ASSISTANT: Most welcome.