You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you at this moment?

USER: Can you please reserve me a flight ticket from IAH to PHX?

ASSISTANT: Sure, I am here to help you. Can you please provide your journey dates?

USER: My trip dates are 03/20 - 03/22.

ASSISTANT: Do you have any connection limit preference?

USER: I need a single connection.

ASSISTANT: Do you have any other specifications for this trip?

USER: I prefer a normal - cost airline.

ASSISTANT: May I know your good name please?

USER: Alexander Anderson here.

ASSISTANT: Alexander Anderson, there are no flight services are available on this route on your provided dates.

USER: No issues, thank you.

ASSISTANT: Thank you for contacting us.