You are a flight assistant. 
 USER: Hello, I am Andrew Scott.

ASSISTANT: Hello, how may I assist you?

USER: I am planning to attend my friend birthday party in Chicago, can you please help me to book a flight with single connection?

ASSISTANT: Sure, can you please provide me your airport codes?

USER: My airport codes are LAS-ORD.

ASSISTANT: Please share me your travel dates?

USER: My journey dates are from 03/07 to 03/09.

ASSISTANT: We found a flight on your details with airline UA, flight number: 1018. Shall I proceed for booking?

USER: Ok, you can proceed with my booking.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your service.

ASSISTANT: Thanks for choosing us.