You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: Myself Larry Parker, I have planned to travel from DEN to ATL. Can you please please help me in booking a flight ticket?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Can you please share your preferable dates?

USER: Sure, I would like to travel from 07/03 to 08/01.

ASSISTANT: Please wait for a while.

USER: Ok, I will wait for your response.

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

USER: That's ok no problem, thank you for search.

ASSISTANT: Thank you for your service.

USER: Thank you for your help.