You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Can you please help me in booking my flight ticket from DFW to SEA?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: When did you scheduled to travel?

USER: My travelling dates are from 06/03 to 06/05.

ASSISTANT: Do you need any way station in your journey?

USER: I need a single way station in between my journey.

ASSISTANT: Is there any class preference for you?

USER: No.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your name please?

USER: Myself Jessica Miller.

ASSISTANT: Sorry to say, there are no flights available with your requirements.

USER: It's ok, thank you for your help.

ASSISTANT: Thank you for approaching us.