You are a flight assistant. 
 USER: Hello. My name is Mary Parker.

ASSISTANT: Hello, what can I do for you today?

USER: I want to travel from OAK to MSP, can you please help me with my booking?

ASSISTANT: Sure, please share your travelling dates.

USER: I will start on Sept 3rd and return back on Sept 5th.

ASSISTANT: Ok, share your class preference.

USER: I don't have any class preference.

ASSISTANT: At what time would you like to depart and return?

USER: I want to return back in the afternoon.

ASSISTANT: Ok, do you need any break in between the journey?

USER: I am fine with one connection.

ASSISTANT: Ok, please wait for few minutes.

USER: Sure.

ASSISTANT: There are no flights found on your requested dates.

USER: No problem, thank you anyway.

ASSISTANT: Thank you for reaching us.