You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Here Joshua Davis. I want to travel from BOS to DTW to attend my friend marriage. Can you please help me in that.

ASSISTANT: Sure, please provide your itinerary dates.

USER: My preferable dates are 03/06 and 03/08.

ASSISTANT: Please give me a moment to check for available flights.

USER: Sure, take your own time.

ASSISTANT: Sorry, no flight is available on your route.

USER: That's ok, thank you for informing.

ASSISTANT: Thank you for choosing us.