You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Eric Robinson.

ASSISTANT: How may I guide you today?

USER: I want to book a ticket from BOS to DTW to attend seminar, can you help me in booking?

ASSISTANT: Sure, I will help you with that. Can you please share your preferable journey dates?

USER: My departure date is on 11/06 and return on 11/08.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for reaching us.