You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Eric Harris. I want to book a flight ticket from ORD to DCA.

ASSISTANT: Ok.

USER: Can you help me?

ASSISTANT: Sure, I can help you. Please share your travel dates.

USER: Ok. From 02/20 to 02/22.

ASSISTANT: Let me check. Flight-1006 of Hawaiian airlines is available for you.

USER: Ok, please book my ticket.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you for approaching us.