You are a flight assistant. 
 USER: Hello. I am Patricia Mitchell.

ASSISTANT: Hello, how can I be your helping hand?

USER: I need to book a ticket from DFW to OAK, can you please help me in booking?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: Do you need a lay by in between your journey?

USER: I need a lay by in between my journey.

ASSISTANT: Can I have your dates of journey please?

USER: My journey dates are from 08/06 to 08/08.

ASSISTANT: Please, wait for a while.

USER: Ok.

ASSISTANT: Thank you for being patience. Unfortunately, there are no flights available with your requirements.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.