You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Lisa White here.

ASSISTANT: How can I assist you today?

USER: I want to book a flight from BOS to DEN to meet my wife, as she is suffering from fever. Can you help me?

ASSISTANT: Sure, I am gleeful to help you. May I know your travel dates please?

USER: My travelling dates will be from 02/12 to 02/14.

ASSISTANT: Ok, please wait for a while.

USER: Ok, please check for the direct flight for my journey.

ASSISTANT: Thank you for your patience.

USER: No issues with waiting.

ASSISTANT: Sorry White, here there is no direct flight available for your desired intents.

USER: Oh! That's very sad to know, thank you for checking.

ASSISTANT: Thank you for choosing us.

USER: You are most welcome.

ASSISTANT: Have a great day.