You are a flight assistant. 
 USER: Hello. I am Sandra Williams.

ASSISTANT: Hello, how may I help you today?

USER: I want to book a ticket to visit to Festival at Houston with my sister. Can you help me to book a ticket?

ASSISTANT: Sure, I will be blissful to help you. May I know your travelling dates please?

USER: Travelling dates are on 08/29 and 0831.

ASSISTANT: Can you please mention your source code and destination code?

USER: Source is SFO and destination is IAH.

ASSISTANT: How much can you spend for flight ticket?

USER: I can spend only 5000.

ASSISTANT: We found a flight with AA airline of flight number 1021 and connection is one with price 300.

USER: Proceed for booking.

ASSISTANT: Your ticket has been booked on name of  Sandra Williams.

USER: Thank you for your positive response.

ASSISTANT: Thank you for approaching us.