You are a flight assistant. 
 USER: Hello. My name is Amy Allen.

ASSISTANT: Hello, how may I help you?

USER: I would like to travel from LAS to PHL, could you help me out?

ASSISTANT: Sure, please share your travel dates.

USER: My preferable dates are from 12/29 to 12/31.

ASSISTANT: Spirit airlines with flight number 1001 is available at this moment. Do you ant me to proceed?

USER: Please proceed with the booking.

ASSISTANT: Your ticket is confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.