You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I abet you today?

USER: My name is Jacob Roberts. I am looking to book a flight, can you help me to reach my destination on time?

ASSISTANT: Sure, I will help you in booking. Can you please share your travelling codes?

USER: My source airport code is CLT and destination airport code is LAS.

ASSISTANT: On which dates you want me to book your tickets?

USER: My travelling dates are 11/23 and 11/25.

ASSISTANT: Please wait a while.

USER: Sure, take your time.

ASSISTANT: Sorry for inconvenience, no flights are available on your route.

USER: That's ok, thank you for checking.

ASSISTANT: Welcome, have a nice day. Thank you for choosing us.

USER: Welcome.