You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Katherine Evans. I  need to book a ticket to meet my friend on her birthday from DEN to HOU. Could you please help me in booking a ticket with fare of 1000?

ASSISTANT: May I know your travel dates?

USER: My travelling dates are 01/21 and return on 01/23.

ASSISTANT: Do you have any connection limit?

USER: I need a connection in between the journey.

ASSISTANT: Sorry, only direct flights are available on your travel dates.

USER: Don't proceed with booking. Thank you for your information.

ASSISTANT:  Thank you for opting us.