You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, what kind of support are you looking for?

USER: Can you please help me to book a flight ticket from OAK to PHL?

ASSISTANT: Sure, when are you planning to start and return on?

USER: My trip is in Mar from 25th to 27th.

ASSISTANT: Do you prefer a connecting flight?

USER: Yes, I prefer a connecting flight.

ASSISTANT: Can I know your good name?

USER: Jason Perez here.

ASSISTANT: Do you have any other specifications?

USER: No, thanks for asking.

ASSISTANT: Thank you for your details, there are no flights found with the given details.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you.