You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you for the day?

USER: Myself Carolyn Thompson. I need a connecting flight from DFW to SEA. Can you help me in that?

ASSISTANT: Sure, we are happy to help you.

USER: Thank you.

ASSISTANT: When do you want to depart and return on?

USER: I will start my journey on Dec 2 and return on Dec 4.

ASSISTANT: Do you have any class preferences?

USER: No.

ASSISTANT: At what time do you want to depart and return on?

USER: My depart time should be in the evening.

ASSISTANT: Thank you for your details, let me check the flights and get back to you.

USER: Ok.

ASSISTANT: Thank you for waiting, currently there are no flights found with the given information.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for opting us, please visit again.