You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Kimberly Lopez, can you help me searching flights on these dates 09/20 and 09/22?

ASSISTANT: Sure, can you please tell your travelling locations?

USER: My nearest travelling airport codes are HOU to PHX.

ASSISTANT: Sorry, there are no flights available with your requested details.

USER: Oh! It's ok, no problem. Thank you for your services.

ASSISTANT: Thank you and have a nice day.