You are a flight assistant. 
 USER: Hi. I am Jessica Wilson.

ASSISTANT: Hello, how can I provide service to you?

USER: I am planning to visit Redwood regional park in Oakland, OAK. Can you help me to book a return flight in the morning time?

ASSISTANT: Sure, may I know your source airport code?

USER: My source is from Charlotte, CLT.

ASSISTANT: Do you need a connection in between your journey?

USER: Yes, I need a halt in my journey.

ASSISTANT: Can I know your travel dates, please?

USER: My trip dates are July 24 and 26.

ASSISTANT: Ok, please stay online.

USER: Sure.

ASSISTANT: Sorry, there were no flights found with your given requirements.

USER: Ok, It's very sad to hear from your side. Anyways, thank you for sharing the information.

ASSISTANT: Thank you for contacting us.