You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I abet you?

USER: My friends are going for adventures trip to OAk, I also want to join with them.

ASSISTANT: Ok.

USER: So, help me in making a reservation with the name of Sharon Nelson.

ASSISTANT: Sure, I am here to help you. Let me know your travelling dates.

USER: 08/04 to 08/06.

ASSISTANT: May I know your source code?

USER: ORD is the source point.

ASSISTANT: Thanks for being patience, there is no flights found on your given requirements.

USER: Ok. Thank you for your service.

ASSISTANT: Thank you.