You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Andrew Johnson.

ASSISTANT: How can I support you today?

USER: I need to book a flight ticket from LAS to PHX, Can you please help me for booking?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Can I know your travelling dates?

USER: I would like to travel on 04/03 to 04/07.

ASSISTANT: Andrew Johnson do you need direct flight?

USER: I need a connecting flight.

ASSISTANT: Please re-check your travel dates.

USER: My return date 04/05.

ASSISTANT: Sorry, no flights found on your requested travelling dates.

USER: Ok, no problem.

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

USER: Thanks for your information.