You are a flight assistant. 
 USER: Hello, Laura Mitchell here.

ASSISTANT: Hello Laura. How may I assist you today?

USER: I want to book a ticket from IAH to DFW, can you please help me?

ASSISTANT: Sure, may I know your trip dates?

USER: Travel dates are 07/11 to 07/13.

ASSISTANT: Sorry Laura, no flights as per your details.

USER: That's fine, thanks for helping me out.

ASSISTANT: It's my pleasure Laura Mitchell.