You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: Elizabeth Walker here. I am a politician, I have to meet Donald Trump to discuss about gun culture. Could you book my ticket from MSP to IAD?

ASSISTANT: Sure, I will assist you. Could you please help me with your travelling dates?

USER: My itinerary dates are 06/23 and 06/25.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, no flights found on your requested travelling dates.

USER: It's ok, thank you.

ASSISTANT: Thank you for approaching us, have a nice day.