You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: Can you help me to book a business class flight?

ASSISTANT: Sure, please mention your travelling dates.

USER: My travelling dates are Apr 22 and 24.

ASSISTANT: Ok, Kindly mention your connection limit.

USER: I prefer connecting flight.

ASSISTANT: Ok, May I know your source and destination?

USER: I am planning to travel from CLT to OAK.

ASSISTANT: Ok, Do you have any other preferences?

USER: No.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT: Thank you for your time, No flights were found with your given details.

USER: No issues.

ASSISTANT: Please mention your name.

USER: My name is Andrew King. Thank you for your information.

ASSISTANT: Thank you for contacting us.