You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I want to book a flight ticket from Houston, IAH to San Francisco, SFO. So can you please help me in booking a flight ticket on name Jessica Robinson?

ASSISTANT: Sure, can you share your journey dates?

USER: My journey dates are from Aug 30 to Sept 01.

ASSISTANT: Do you have any preferences?

USER: I need a direct flight ticket.

ASSISTANT: Do you have any other specifications?

USER: I prefer to travel in normal cost airlines.

ASSISTANT: May I know your name?

USER: My name is Jessica Robinson.

ASSISTANT: Sorry, there is no direct flight on your given dates.

USER: That's ok, not a problem. Thanks for your information.

ASSISTANT: Thank you for reaching us.