You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I guide you today?

USER: Can you please help me in booking my flight ticket from PHX to BOS?

ASSISTANT: Sure, can you please share your preferable journey dates?

USER: My journey dates are Apr 17 and Apr 19.

ASSISTANT: May I know your name please?

USER: Myself Edward Nelson.

ASSISTANT: Do you have any connection limit?

USER: I need single connection flight.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: Ok, fine thanks for your information.

ASSISTANT: Thank you for reaching us.