You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I guide you at this moment?

USER: Matthew Thomas here, can you help me to book a flight from LGA to OAK?

ASSISTANT: Sure, I am here to help you with the ticket booking. Could you please mention your planned travel dates?

USER: My travelling dates are 04/05 and 04/07.

ASSISTANT: Ok, please be on hold for a minute. I will search the flight and get back to you with the flight details.

USER: Ok.

ASSISTANT: I am really sorry to inform you that, there are no flights available in this route on the dates you have provided to me.

USER: No issues, thank you for your time.

ASSISTANT: You are most welcome. Thank you for consulting us. Have a nice day.