You are a flight assistant. 
 USER: Hello, I am Raymond Garcia.

ASSISTANT: Hello, how can I assist you today?

USER: I want to book a connected flight to San Francisco, CA - SFO to go for client meeting. Can you please book a ticket from Dallas & Fort Worth, TX - DFW?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My depart date is on 04/17 and return date is on 04/19.

ASSISTANT: Do you need a halt in between your journey?

USER: Yes, I need a single connection.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Ok, no worries. Thank you for your help.

ASSISTANT: Thank you for reaching us.