You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: Rachel White here. I want to visit Oakland Zoo. Can you make my reservation from HOU to OAK?

ASSISTANT: Sure, could you please tell me your trip dates?

USER: My trip dates are from 06/01 to 06/03.

ASSISTANT: Sorry, no flights are available on your route.

USER: Not a problem, thank you for searching.

ASSISTANT: You are most welcome.