You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you?

USER: I am Edward Hall. I need to book a ticket to meet my parents in catholic church on 09/08.

ASSISTANT: Sure, may I know when would you like to return?

USER: Could you please help me in booking a ticket on return ticket on 09/10?

ASSISTANT: Please provide me your airport codes.

USER: My airport codes are DTW and SFO.

ASSISTANT: Do you need a lay by?

USER: I need a lay by in between the journey.

ASSISTANT: Ok, Frontier airline with flight number 1023 is going on your route and price is 100.

USER: You can proceed with booking.

ASSISTANT: Your booking has been done.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing us.