You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: William Davis here. I want to book a flight from LGA to IAH, can you please help me in booking?

ASSISTANT: Sure, could you please share your departure and arrival dates?

USER: Sure, I would like to travel on dates 04/10 to 04/12.

ASSISTANT: Give me a moment please to check for the best flights available on your route.

USER: Ok, take your time.

ASSISTANT: Ok, there is a flight 1004 in AA airline matching your details with price 100. Shall I proceed?

USER: Ok, please proceed with booking.

ASSISTANT: Ok, your booking is done.

USER: Thank you for the service.

ASSISTANT: You are welcome, have a safe journey.