You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Gary Lopez.

ASSISTANT:  How can I help you?

USER: Please book a flight ticket from Atlanta, ATL to  Oakland, OAK to meet my fiance.

ASSISTANT: Ok, please provide me your travel dates?

USER: My dates of travel are 05/20 - 05/22. I need a connecting flight.

ASSISTANT: Sorry, no flights are available on your requested dates.

USER: Ok, I will choose other airline.

ASSISTANT: Thank you for availing us.

USER: Thank you.