You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Ashley Allen.

ASSISTANT: Allen, how may I help you?

USER: I want to book a ticket from LAX to LAX to attend seminar, can you help me in booking?

ASSISTANT: Sure, may I know your itinerary dates?

USER: I am departing on 02/16 and return on 02/18.

ASSISTANT: Please wait for a while.

USER: Sure, take your time.

ASSISTANT: Delta airlines with flight 1001 is available on your route.

USER: Please proceed for booking.

ASSISTANT: Your ticket is confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.