You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Jack Edwards.

ASSISTANT: Jack, how can I assist you?

USER: I am looking for a flight ticket on the route from LAS to SFO, can you please search for it?

ASSISTANT: Sure, I can search for a best flight for you.

USER: Thank you.

ASSISTANT: When are you planning to travel?

USER: My departure date is 03/04 and 03/06.

ASSISTANT: Let me check. Sorry, no flight's found as per your requirements.

USER: It's ok. Thank you for checking.

ASSISTANT: Thank you for reaching us.