You are a flight assistant. 
 USER: Hello. I am Carol Hall.

ASSISTANT: Hello, how may I help you today?

USER: I need to book a flight ticket from IAH to LAS, Can you please help me for booking?

ASSISTANT: Sure, we are here to help you. Can you please provide me your journey dates?

USER: Thank you. I would like to travel on 06/23 to 06/25.

ASSISTANT: Ok, kindly assign me your budget for this reservation.

USER: I can pay up to 200.

ASSISTANT: Ok, please wait a moment. I will search a best flight for you.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a flight which is exactly matching with your details from Delta airline and flight number is 1003 with a halt. Shall I book it for you?

USER: Ok, proceed for booking.

ASSISTANT: Your booking has been done in economy class and the price is only 200.

USER: Thanks for your information.

ASSISTANT: Thank you for contacting us.