You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I address you?

USER: Please book me a flight ticket from SFO to DFW to meet my family.

ASSISTANT: Sure, We are here to help you. Can I know your travelling dates?

USER: I have planned to travel on June 08th and return on June 10th.

ASSISTANT: Do you need any break?

USER: No, I like direct flight.

ASSISTANT: On which name should I book the flight ticket?

USER: Michael Roberts.

ASSISTANT: Is there any other specifications?

USER: I want to depart at morning time.

ASSISTANT: Ok. Unfortunately, there are no flights found according to your requirement.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.