You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you please help me to make my reservation from HOU to LGA?

ASSISTANT: Sure, may I know your travelling dates?

USER: Sure, I want to depart on 10/03 and return on 10/05.

ASSISTANT: Ok, wait for a minute.

USER: Sure.

ASSISTANT: Can I know your name?

USER: My name is Jeffrey Thompson.

ASSISTANT: Sorry Jeffrey, there are no flight's available based on your request.

USER: No problem, anyway thank you very much for checking.

ASSISTANT: Thank you for approaching us.