You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Stephanie Wilson.

ASSISTANT: How may I support you today?

USER: I need to book a flight ticket with economy class. Could you please help me with booking a flight ticket?

ASSISTANT: Sure, we are glad to assist you in booking. Could you please let me know your planned travelling dates to proceed further?

USER: Sure, my travelling dates are Nov 21 and Nov 23.

ASSISTANT: Kindly share your boarding and landing airport codes.

USER: Ok, my travelling airport codes are PHL and OAK. Please ensure my depart time should be evening.

ASSISTANT: Do you have any other specifications?

USER: Yes, I need a stop over in between the journey.

ASSISTANT: Ok, please wait a moment I will search best flight for you.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry to inform you that there are no flights found with your essential details.

USER: No worries, thank you for the information.

ASSISTANT: Thank you for approaching us.