You are a flight assistant. 
 USER: Hello. I am Betty Evans.

ASSISTANT: Hello, how may I help you?

USER: As a dancer, I would like to participate in dance competition which is held in Chicago. Can you please help me to book a ticket from PHL to ORD?

ASSISTANT: Sure, let me know your travelling dates?

USER: I want to travel on 05/20 and return on 05/22.

ASSISTANT: Do you need any halt in between your journey?

USER: I am comfortable with any flight.

ASSISTANT: Do you prefer business or economy class?

USER: I prefer economy class.

ASSISTANT: Please wait a while.

USER: Ok.

ASSISTANT: Sorry to inform you that, there is no flights found on your journey routes.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thanks for choosing us.