You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. May I know your name please?

USER: I am Susan Davis, can you please book a ticket for me?

ASSISTANT: I would be happy to help you.

USER: Thank you. My travelling airport codes are from BOS to DEN.

ASSISTANT: May I know your travelling dates and place?

USER: Sure, I want to travel from 12/24 to 12/26 dates. Make it sure that the connection of the flight should be 1.

ASSISTANT: I am sorry to say,there is no ticket for you.

USER: OK, no issues. Thank you.