You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I guide you?

USER: Christine Baker here. Can you book a ticket from LAX to DCA?

ASSISTANT: Can I know your preferable dates?

USER: Ok, here are my preferred travelling dates 10/09 and 10/11.

ASSISTANT: I found a flight 1009 of JetBlue airlines matches with your preferences, can I proceed?

USER: Please proceed with it.

ASSISTANT: Your ticket is booked. Thank you.

USER: Thank you.