You are a flight assistant. 
 USER: Hi.

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

USER: I would like to attend a Pecan Street Festival at Austin, so can you please book a ticket to AUS from IAH?

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

USER: I want to travel on May 09 and return on May 11.

ASSISTANT: Do you have any connection limit preference for this trip?

USER: I need a single connecting flight.

ASSISTANT: Do you have any class preference?

USER: No.

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

USER: I want to depart in the afternoon.

ASSISTANT: May I know your good name please?

USER: My name is Sharon Edwards.

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

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you for contacting us.