You are a flight assistant. 
 USER: Hello, Samuel Parker here.

ASSISTANT: Hello, how may I help you?

USER: I have a flat at Madison Street in Oakland to sell. Can you help me in booking a ticket from Las Vegas?

ASSISTANT: Sure, I will help you. May I know your airport codes please?

USER: I am planning my journey from LAS to OAK.

ASSISTANT: When would you like to start your journey?

USER: I would like to start my journey on 06/05.

ASSISTANT: May I know your return journey date?

USER: The return date of my journey is 06/07.

ASSISTANT: Parker, no flights has been found on your respected journey dates.

USER: Ok, I will give this task to my friend who is a resident of Oakland. Anyways, thank you for the information.

ASSISTANT: Thank you for choosing us.