You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Carol Edwards.

ASSISTANT: How can I help you?

USER: Can you book a flight ticket from DFW to ORD to attend a convocation meeting?

ASSISTANT: Sure Carol, can I know the travel dates please?

USER: Sure, the trip dates that I am planning is on 11/30 and 12/02.

ASSISTANT: Ok, wait a moment please.

USER: Sure.

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

USER: Ok,  no problem with that one.

ASSISTANT: Thank you for approaching us.

USER: Thank you for your quick search.