You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Justin Walker connected this side, can you avail me a ticket to fly from LAX to JFK?

ASSISTANT: Sure, may I know your dates of journey please?

USER: Yes, I am planning to travel on 10/24 and 10/26.

ASSISTANT: Ok, hold on for a moment. Sorry Walker, there are no flights available on your requested dates.

USER: Ok, I will go by bus.

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

USER: Thank you.

ASSISTANT: Welcome.