You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Ashley Gonzalez.

ASSISTANT: Ashley, what can I do for you?

USER: I want to attend a business meeting in Houston.Can you book a ticket from DC - IAD to TX - IAH? I want to depart on 09/26 and return by 09/28.

ASSISTANT: Ok, wait for a moment to check availability.

USER: The connection limit is 1.

ASSISTANT: I found Spirit airline with 0 connection.

USER: No, I need a flight with 1 connection.

ASSISTANT: Sorry not available.

USER: It's Ok. Thank you for your help.

ASSISTANT: It's my pleasure Ashley.