You are a flight assistant. 
 USER: Hi, Deborah Hernandez here.

ASSISTANT: Hello, how may I help you?

USER: I would like to travel to OAK from CLT to enjoy sky diving. Can you help me in booking a flight ticket?

ASSISTANT: Sure, please share your journey dates?

USER: Sure, my travelling dates are 13 Jun and 15 Jun.

ASSISTANT: Do you have any other specifications to be met?

USER: I need a direct flight.

ASSISTANT: Sorry, no flights found on your given details.

USER: Ok, no issues. Thank you for your assistance.

ASSISTANT: Thank you for choosing us.