You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: I am Alexander Martinez. I want to visit LAS, to meet my brother. Can you please book a ticket from BOS?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: Sure, my trip dates are 11/01 and 11/03.

ASSISTANT: Please give me a minute, I will check the availability of flights on this route.

USER: Ok, I will wait for your response.

ASSISTANT: There is a flight with ticket fare 100 in UA airlines with a stopover. Is it ok for you?

USER: Can you please check for the direct flight ?

ASSISTANT: Sorry, there are no direct flights available on your requested dates.

USER: It's ok, thank you for you information.

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