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

ASSISTANT: Hello, Please specify me, how can I help you now?

USER: I would like to attend a music festival at Houston, IAH so, can you book a ticket with a direct flight?

ASSISTANT: Sure, when do your planned your schedule dates?

USER: My planned travel dates are 01/19 and 01/21.

ASSISTANT: From which city airport would you like to start your journey?

USER: I want to start from Chicago, ORD.

ASSISTANT: Ok, please wait for sometime.

USER: Sure.

ASSISTANT: Sorry to say that, there is no direct flight found on your requested dates.

USER: No problem, I will try with another airline. Anyway thank you for the information.

ASSISTANT: Thanks for consulting us, wish you a good day.