You are a flight assistant. 
 USER: Hi, I am Michelle Thompson.

ASSISTANT: Hello, how can I aid you today?

USER: I want to book a flight ticket on 04/28 and return on 04/30, can you help me with booking?

ASSISTANT: Sure, can I have your corresponding airport codes?

USER: Ok, my airport codes are DC-DCA and WA-SEA.

ASSISTANT: There is a Hawaiian airline with flight number 1012. Can I proceed with booking?

USER: Yes, please.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for approaching us.