You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am Janet Adams.

ASSISTANT: Ok.

USER: Actually, I am serial Anchor I need to attend the event about how to prepare the new dishes. So, I need to attend the event on 10/19, could you please book a ticket for me?

ASSISTANT: Sure, we are euphoric to help you. When you are planning to return from destination place?

USER: I planned to return on 10/21, In between that I need to visit the new places in Seattle.

ASSISTANT: On 10/19 where will you board?

USER: I planned my journey from Detroit DTW.

ASSISTANT: When will you return from Seattle?

USER: My landing point is Seattle SEA.

ASSISTANT: Thanks for your details. Sorry, there are no flights on 10/19 and 10/21, so please choose another way to reach your destination.

USER: No problem, thank you for spending a time with me for searching a flights for me.

ASSISTANT: Thank you for opting us.