You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I guide you?

USER: Anna Davis here. Can you book a ticket from CLT to PHL?

ASSISTANT: Sure, can I know your preferable dates?

USER: Ok, here are my travel dates 05/28 and 05/30.

ASSISTANT: I found a flight 1003 of Delta airlines matches with your preferences, can I proceed?

USER: Please book it.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you, have a good day.