You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Elizabeth Roberts.

ASSISTANT: How may I help you?

USER: Can you please book me the ticket from IAH to ORD? As I need to attend a seminar at Chicago.

ASSISTANT: Sure, let me know your travelling dates?

USER: I want to depart on Aug 08 and would like to return on Aug 10.

ASSISTANT: Do you need any lay by in between your journey?

USER: Yes, I need 1 halt in between my route.

ASSISTANT: Do you have any price limit?

USER: My budget for this trip is 1000 only.

ASSISTANT: Please hold on a minute.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry to inform that, there are no flight found on your given routes.

USER: Ok, not an issue. I will find any alternate for this trip. Thank you for providing information.

ASSISTANT: Thanks for reaching us, have a nice day.