You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you today?

USER: I want to attend for an interview in Boston, so please book a flight ticket from PHX to BOS.

ASSISTANT: Sure, please share me your planned journey dates?

USER: I want to fly on Oct 27, return on Oct 29.

ASSISTANT: Please mention your connection limit?

USER: I need a single connecting flight.

ASSISTANT: Is there any other requirement related to booking?

USER: No.

ASSISTANT: May I know your good name?

USER: My name is Christopher Thompson.

ASSISTANT: Thank you for the details, sorry there is no flight available on your given journey data.

USER: No problem, thank you.

ASSISTANT: Thank you for visiting us, we hope see you again.