You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Can you please book me a ticket in economy class?

ASSISTANT: Sure, we are here to help you. Can you share me your source point and destination point?

USER: I am heading to IAD from EWR to submit my project report in my office.

ASSISTANT: Let me know when you are willing to travel?

USER: I would start on May 27th and return on May 29th.

ASSISTANT: May I know your name?

USER: I am John Miller.

ASSISTANT: Do you have any other specifications?

USER: I need 1 flag stop within my route.

ASSISTANT: Ok, wait for some time.

USER: Sure.

ASSISTANT: Thanks for waiting there are no flights found on your details.

USER: That's Ok, thanks for your assistance.

ASSISTANT: Thanks for approaching us.