You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I am Shirley Smith, I want to travel from IAH to IAH, could you please help me for that?

ASSISTANT: Sure, can I know your travel dates please?

USER: My travelling dates are 03/24 and 03/26.

ASSISTANT: Sorry, I didn't find any flight basis on your details.

USER: That's ok, thank you for your service.

ASSISTANT: Thank you for reaching us.