You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I guide you today?

USER: I want to travel from CLT to PHX for conference meeting meeting, can you please help me to book the flight ticket?

ASSISTANT: Sure, I will help you with that. Can you please share your journey dates?

USER: Sure, I want to depart on 10/15 and return on 10/17.

ASSISTANT: may I know your name?

USER: My name is Charles Hill.

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

USER: No problem, I will find an other way. Thank you for the information.

ASSISTANT: Thank you for contacting us.