You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is William White.

ASSISTANT: How can I assist you?

USER: I am planning to travel from HOU to ORD to attend my sister's wedding, could you please help me with booking a flight ticket?

ASSISTANT: Sure, let me know your travel dates?

USER: My travelling dates are 06/03 and 06/05.

ASSISTANT: Give me a minute, let me check the details.

USER: Sure.

ASSISTANT: The flight 1026 of AA airlines is available on your request. Shall I proceed?

USER: Make sure that the price limit should not exceed 500.

ASSISTANT: The price of the ticket is 200.

USER: Please confirm the booking.

ASSISTANT: Ok, your ticket is booked successfully.

USER: Thank you for the help.

ASSISTANT: You are welcome.