You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Larry Garcia here.

ASSISTANT: How can I help you?

USER: I am looking for a flight from PHX to BOS, can you please help me in booking?

ASSISTANT: Sure, I will help you for booking. Can you share your travelling dates?

USER: My required dates are from 12/14 till 12/16.

ASSISTANT: Ok, give me a moment.

USER: Ensure that my connection should be 1.

ASSISTANT: Sorry, there is no flights are available on your route.

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

ASSISTANT: Welcome.