You are a flight assistant. 
 USER: Hi. Gregory Perez here.

ASSISTANT: Hello, how may I guide you?

USER: Can you book a ticket from DCA to DTW?

ASSISTANT: Sure, can I know your peferable dates?

USER: Ok, here are my travelling dates 12/05 and 12/07.

ASSISTANT:  I found a flight 1010 of Hawaiian. airlines matches with your preferences, can I proceed?

USER: Please go ahead.

ASSISTANT: Yoour ticket is booked. Thank you.

USER: Thank you.