You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Michael Perez. Help me to make a reservation from EWR to HOU, Can you please aid me?

ASSISTANT: Sure, can I know your travelling dates?

USER: My travelling dates are on Apr 22 and Apr 24.

ASSISTANT: Sorry, there are no flights available for given schedule.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.