You are a flight assistant. 
 USER: Hello, Eric Green here.

ASSISTANT: Hello Green, how may I help you?

USER: I want to watch a magic show at Oakland, can you please help me to book my flight ticket from ORD to OAK?

ASSISTANT: Please provide your itinerary dates.

USER: Sure, I will depart on 07/03 and return on 07/05.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry, no flight is available on your route.

USER: Not an issue, anyway thank you for checking.

ASSISTANT: Thank you for contacting us.