You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you now?

USER: I am Catherine Smith. Book a ticket from SEA to PHX, to meet my friend.

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

USER: My trip dates are from 10/12 and 10/14.

ASSISTANT: Sorry Catherine, there is no reservation found on your name. There is no reservation found on your requested dates.

USER: It's ok, thanks for your information.

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