You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you now?

USER: I am Rachel Carter. I am planning to book a ticket from IAH to MSP. Can you please help me out?

ASSISTANT: Sure, can you please mention the travelling dates of your journey?

USER: I would like to travel on 04/24 and return back on 04/26.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

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

USER: That's fine.

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

USER: Thank you for your service.

ASSISTANT: You are welcome.