You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Michael Hernandez.

ASSISTANT: How can I help you today?

USER: I am planning to attend music concert at IAH, can you please help me with booking a flight ticket from LGA?

ASSISTANT: Can I know your travelling dates?

USER: Sure, I would like to take off on 07/07 and return back on 07/09.

ASSISTANT: Sorry, no flight is available for you.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for opting us.

USER: You are welcome.