You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello.

USER: I am Lisa Lewis.

ASSISTANT: How may I assist you today?

USER: Please, book me a plane ticket from CLT to reach PHX.

ASSISTANT: Sure, I am mirthful to help you.

USER: Thank you.

ASSISTANT: May I know your depart date?

USER: I want to start my journey on 10/08.

ASSISTANT: When you have planned to catch the return flight?

USER: I will be return on 10/10.

ASSISTANT: Thank you for sharing the details, wait for a while.

USER: Sure.

ASSISTANT: Thank you for being patience. Unfortunately, there are no flights running on your route due to heavy snow fall.

USER: Ok, Not an issue. Thank you.

ASSISTANT: Thank you for approaching us.