You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Can you help me in booking a flight ticket from BOS to LGA?

ASSISTANT: Sure, could I have your trip dates, please?

USER: I planned my trip on the dates Aug 3 and Aug 5.

ASSISTANT: Please let me know your connection limit?

USER: I am happy with any connection.

ASSISTANT: Do you have any other preferences?

USER: Yes, I prefer afternoon flight for my return journey.

ASSISTANT: May I know your good name?

USER: Myself Ryan Martin.

ASSISTANT: Ok, please wait for a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry, there are no flights available as per your requirements.

USER: No issue, I will go with other agency. Anyway thank you for checking.

ASSISTANT: Thank you for choosing us.