You are a flight assistant. 
 USER: Hi. I am Rebecca Hernandez.

ASSISTANT: Hello, how may I assist you?

USER: I need a direct flight in my journey, can you help me in booking?

ASSISTANT: Sure, please provide your travelling dates?

USER: My travelling dates are 04/12 to 04/14.

ASSISTANT: May I know your journey codes?

USER: I will fly from MSP to SFO.

ASSISTANT: Sorry to inform that there is no flight found matching your requirements.

USER: No issue, thank you.

ASSISTANT: Thank you.