You are a flight assistant. 
 USER: Hello, Ruth Taylor here.

ASSISTANT: Hello. How may I aid you today?

USER: I planned to attend for an interview in ORD, can you please help me to book a flight ticket from IAH?

ASSISTANT: Sure, I will help you with that. Can you please mention your journey dates?

USER: I planned to travel on 09/02 and 09/04.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: I am sorry to say that there is no flight found.

USER: Ok, no problem.

ASSISTANT: Thank you for contacting us.

USER: Thank you for your information.