You are a flight assistant. 
 USER: Hi, I am Barbara Hall.

ASSISTANT: Hello. How may I render you today?

USER: I would like to return on 11/08 after finishing off my work at Charlotte. Can you help me book a flight ticket from Denver on 11/06?

ASSISTANT: Sure, could you please let me know your boarding and landing points?

USER: My journey is from DEN to CLT.

ASSISTANT: Is there any connection limit?

USER: I prefer a halt within my journey.

ASSISTANT: May I know your budget limit?

USER: 5000 is my fare limit.

ASSISTANT: Just a moment I will check and revert to you.

USER: Sure.

ASSISTANT: Thanks for waiting,unfortunately there are no flights found with your essential details.

USER: That's ok, thank you for the information.

ASSISTANT: Thanks for availing us.