You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: I want to fly from PHX to CLT. Can you check the flight availability on that route?

ASSISTANT: Sure, can I know your travelling dates?

USER: My planned travel dates are 06/26 and 06/28.

ASSISTANT: May I know your name?

USER: Helen Smith here.

ASSISTANT: Any specifications needed?

USER: I want a flight with single connection.

ASSISTANT: Sorry, there are no flight tickets available on your journey dates.

USER: No issues, thank you for the information.

ASSISTANT: Thank you for reaching our service.