You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,.

USER: I am Susan Thompson.

ASSISTANT: How may I help you?

USER: I need to book a ticket to meet my friend who is participating in 800 kilometre race. Could you please help me in booking a ticket from CLT to DEN?

ASSISTANT: In order to book a ticket, please mention your journey dates?

USER: Sure, my travelling dates are 12/28 and return on 12/30.

ASSISTANT: Please provide flight connections limit?

USER: I need one connection in between the journey.

ASSISTANT: No connections found with your requirement.

USER: No problem, thank you for your information.

ASSISTANT: Thanks.