You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you reserve me a ticket from BOS to DEN?

ASSISTANT: Sure, can you please mention your depart and arrival dates of your journey?

USER: My journey dates are Mar 23 to 25.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Please let me know if you have any other specifications.

USER: No.

ASSISTANT: Can I know your good name?

USER: I am Dorothy Hall.

ASSISTANT: Sorry, no flights are available on your journey routes.

USER: Ok, no issues, Thank you for the information.

ASSISTANT: Thank you for choosing us.