You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Scott Lee.

ASSISTANT: How may I guide you today?

USER: I am looking for a flight from CLT to DFW, can you help me out?

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

USER: My airborne will be on 04/11 and deplane will be on 04/13.

ASSISTANT: Please wait for a minute.

USER: Ok.

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

USER: That's ok, no problem. Thank you for your information.

ASSISTANT: Thank you for contacting us.