You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

USER: I am looking for a flight from IAD to OAK, can you please help me in booking?

ASSISTANT: Sure, we are pleased to serve you.

USER: Thank you.

ASSISTANT: When did you scheduled to travel?

USER: My travelling dates are Sept 01 and Sept 03.

ASSISTANT: Do you need any break in your journey?

USER: Yes, I need a break in between my journey.

ASSISTANT: Is there any class preference for you?

USER: I prefer economy class.

ASSISTANT: Do you have any other requirements?

USER: I want to depart in morning.

ASSISTANT: Can you help me with your good name please?

USER: My name is Raymond Lopez.

ASSISTANT: Sorry to inform you that, there are no flights available with your requirements.

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

ASSISTANT: Thank you for choosing us.