You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am Edward Hernandez. I would like to attend sports event at PHX. Could you please book a flight ticket from BOS?

ASSISTANT: Sure, can you share your journey dates?

USER: Sure, I want to travel on dates May 27 and May 29.

ASSISTANT: Do you have any specifications?

USER: Yes, I need a halt in between the journey.

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

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.