You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you please book the flight ticket in the name Rebecca Miller from CLT to ORD?

ASSISTANT: Yes, I will try for my best assistance. Can you share me your travelling dates?

USER: Sure, my travel date I decided is 08/14 and 08/16 respectively.

ASSISTANT: Ok, hold on for a second.

USER: Ok, take you own time.

ASSISTANT: Sorry to say that there are no flights found matching your requirement.

USER: No problem, I will plan my journey some other day.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your help.