You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

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

ASSISTANT: Please share me your trip dates.

USER: My trip dates are from May 19th to May 21st.

ASSISTANT: Do you need any connection limit?

USER: Yes, I prefer a single connection in between my journey.

ASSISTANT: Could you share your preferable timings?

USER: I want to return in the afternoon.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your name?

USER: I am Rachel Hernandez.

ASSISTANT: There are no flights available on your routes.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for opting us.