You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I am Jonathan Hernandez. I need to meet my parents by going my hometown so please help me in booking a flight to ORD from IAH.

ASSISTANT: Sure, may I know your travelling dates?

USER: Sure, it's from 06/23 to 06/25.

ASSISTANT: Please wait for a minute.

USER: Ok.

ASSISTANT: There is no flight found with your requirements.

USER: No issue, thank you.

ASSISTANT: Thank you.