You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am planning to visit Detroit, can you please book me the ticket from LGA to DTW?

ASSISTANT: Sure, I can help you with that. Can you please provide your planned travel dates?

USER: My planned dates of journey are from 12/09 to 12/11.

ASSISTANT: Ok, please wait for a while.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry to inform you that there are no flights available for you on those dates. May I know your good name please?

USER: Ok, not an issue. I will find any alternate for this trip. My name is John Gonzalez.

ASSISTANT: Fine, thank you for choosing us.

USER: Thank you for providing information.