You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Can you please check out is there any flight available between SFO and DTW?

ASSISTANT: Sure, please provide your connection limit.

USER: Thank you for accepting my request, I would prefer direct flight for my journey.

ASSISTANT: Ok, when do you want to travel?

USER: I am planning to move on May 04 and please book my return ticket on May 06.

ASSISTANT: Ok, Do you have any class preference?

USER: No, thank you for asking.

ASSISTANT: Ok, please wait.

USER: Sure, take your time.

ASSISTANT: Thank you for your time, There were no flights found with your given requirements.

USER: Oh! Sad to hear that. Anyway, I will reach another booking agency. Thank you for the information.

ASSISTANT: May I know your name?

USER: Sure, my name is Janet Johnson.

ASSISTANT: Ok, Thank you for choosing us.

USER: You are welcome.