You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,.

USER: I am Timothy Davis.

ASSISTANT: How can I amend you?

USER: I would like to attend a sports festival at Denver, DEN. Can you please reserve me a flight ticket on 08/18?

ASSISTANT: Sure, when you want to return?

USER: I will return on 08/20.

ASSISTANT: May I know your departure airport code?

USER: My boarding point is Chicago, ORD.

ASSISTANT: I found a flight from Hawaiian airline of fare 100 and flight number 1006.

USER: Please proceed with booking.

ASSISTANT: Your flight reservation is done.

USER: Thank you for assisting me.

ASSISTANT: Thanks for reaching us.