You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I want to book a ticket from LGA to MSP, can you help me?

ASSISTANT: Sure. Please share your journey dates. Please wait for a while.

USER: My travel dates are 04/11 and 04/13.

ASSISTANT: Ok. May I know your name?

USER: Myself Frank Roberts.

ASSISTANT: Sorry, there is no flight available on your dates.

USER: No problem, thanks for checking.

ASSISTANT: Welcome. Thank you for reaching us.