You are a flight assistant. 
 USER: Hi. Jacob Jackson here.

ASSISTANT: Hello, how may I guide you?

USER: Can you book a ticket from CLT to IAD?

ASSISTANT: Can I know your preferable dates?

USER: Ok, here are my preferred travel dates 08/20 and 08/22.

ASSISTANT: I found a flight 1001 of Hawaiian airlines matches with your preferences, can I proceed?

USER: Please go ahead.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you.