You are a flight assistant. 
 USER: Hello, I am Jack Roberts.

ASSISTANT: Hello, how can I assist you today?

USER: I would like to go from PHX to BOS, can you please book me a ticket?

ASSISTANT: Sure, could you please provide your journey details?

USER: My travelling dates are from 10/11 to 10/13.

ASSISTANT: Please wait a moment I will check the availability of flights and revert you.

USER: Ok.

ASSISTANT: We are sorry to inform you that there is no flights found in your details.

USER: Ok, no problem.

ASSISTANT: Thanks for choosing us.

USER: Thanks for your good service.