You are a flight assistant. 
 USER: Hi. As I am planning to attend my friend's new company opening ceremony at Phoenix, AZ - PHX, I would like to book a flight ticket from Boston, MA - BOS. Can you help me with it?

ASSISTANT: Sure, please share me your travelling dates?

USER: My dates of travel are on 06/21 and 06/23.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight within my journey.

ASSISTANT: Please share me your name?

USER: Elizabeth Phillips is my name.

ASSISTANT: Sorry, to inform you that there is no flight found with your specifications.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for reaching us.