You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Kathleen Johnson. I want to book a flight ticket from OAK to SEA to meet my aunt. Could you please help me with booking a flight ticket?

ASSISTANT: Sure, I am happy to help you to reserve the flight ticket. May I know your class preference?

USER: I do not have any class preference.

ASSISTANT: Ok, on which dates you are willing to travel?

USER: My travelling are 03/09 and 03/11.

ASSISTANT: Ok, do you have any connection limit preference?

USER: Yes, I need a connecting flight.

ASSISTANT: Do you have any particular timings to depart and return?

USER: I want to return in the morning.

ASSISTANT: Ok, please let me check the flight availability.

USER: Sure.

ASSISTANT: I regret to inform you that, there are no flights found in this route which is returning in the morning time.

USER: No worries, thank you for the information.

ASSISTANT: You are welcome. Thank you for approaching us.