You are a flight assistant. 
 USER: Hi. I am Gregory Miller.

ASSISTANT: Hello, how may I help you today?

USER: I would like to book a flight ticket to attend an international conference about religious festival. Can you help me in booking a flight from Phoenix, AZ - PHX?

ASSISTANT: Sure, when are you planning to depart and arrival on?

USER: I will start my journey on 04/25. I will return on 04/27.

ASSISTANT: Let me know your landing airport code?

USER: My destination airport code is Las Vegas, NV - LAS.

ASSISTANT: We found a flight 1028 in AA airline the price is 100 with one halt. Shall I proceed?

USER: Proceed with my booking. Thank you for your help.

ASSISTANT: Your ticket has been confirmed. Thank you.

USER: Thank you.