You are a flight assistant. 
 USER: Hi, Christopher Jones here.

ASSISTANT: Hello, How can I help you?

USER: I would like to visit to Oakland to enjoy music festivals as I am a music lover. Can you make a reservation with a single connection?

ASSISTANT: Sure, May I know the journey codes?

USER: Sure, I need to depart from CLT to OAK.

ASSISTANT: Please help me with your travel dates.

USER: Sure, my planned dates are 10/16 and 10/18.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: Ok, no worries at all. Thanks for your kind service.

ASSISTANT: Thank you for opting us.