You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I want to book the flight ticket from SEA to LAS. Can you please help me?

ASSISTANT: Sure, can you please mention your departure and arrival dates of your journey?

USER: Preferred dates are Apr 09 and Apr 11.

ASSISTANT: Do you need any layover in between  journey?

USER: Direct flight required.

ASSISTANT: Do you have specific time concern for return and depart?

USER: Depart time should be afternoon.

ASSISTANT: Is there any other preferences that you would like to add before booking?

USER: No.

ASSISTANT: May I know your name for the documentation process?

USER: Janet Hall here.

ASSISTANT: Thanks for sharing your details, we are unable to provide flight in between your journey routes.

USER: Not an issue. Thanks for checking.

ASSISTANT: Thank you for reaching us.