You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Kenneth Carter.

ASSISTANT: How may I help you now?

USER: Can you please book me a ticket with the fare of 5000?

ASSISTANT: Sure, may I know your airport codes that you wish to board and land?

USER: My airport codes are from CLT to ORD.

ASSISTANT: When are you willing to travel?

USER: I have planned to travel on 12/04 and 12/06.

ASSISTANT: Thank you for your details, we do not found any flights running in your prefered dates.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us. Have a nice day.