You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I lend a hand to?

USER: Jason Hernandez here. I have a party to attend, so could you help me to book a  ticket from PHX to BOS.

ASSISTANT: Sure, I am here to help you for this. Could you please provide me your travel dates?

USER: My travel dates are Dec 22 and Dec 24.

ASSISTANT: Is there any other specifications regarding your journey?

USER: I would like to travel by single connection flight with economy class.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry to inform, no flights are found with your criteria.

USER: No issue. Thank you for the information.

ASSISTANT: Thank you very much for contacting our agency.