You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Susan King.

ASSISTANT: How can I help you today?

USER: I have a business meeting in Houston, can you help me for booking a flight ticket from ORD to HOU?

ASSISTANT: Sure, I will help you in booking. Can I have your travel dates please?

USER: My travelling dates are 01/10 and 01/12.

ASSISTANT: Please wait a moment.

USER: Make sure that my price should not exceed 1000.

ASSISTANT: Sorry, no flights are available within your budget on your route.

USER: That's ok, thank you for checking.

ASSISTANT: You are welcome, have a nice day.