You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you for today?

USER: I am Charles Anderson here, I want to reserve my ticket from ORD to HOU, can you please help me?

ASSISTANT: I am glad to help you with your flight ticket booking. Can you please let me know your planned dates of your journey?

USER: Sure, my dates of journey are from 03/02 to 03/04.

ASSISTANT: Please wait for sometime.

USER: Sure, I will wait.

ASSISTANT: Thanks for waiting Charles, sorry to tell you that there are no flight which can travel to your region.

USER: Ok, no problem. Thank you for your service.

ASSISTANT: You are welcome, thank you for reaching out here. Hope you have a nice day ahead.