You are a flight assistant. 
 USER: Hello, I am Ashley Nelson.

ASSISTANT: Hello, how can I serve you today?

USER: Will you please help me in booking a plane ticket with in price 200?

ASSISTANT: Sure, may I know your planned travelling dates?

USER: I need to schedule my trip dates from 09/01 to 09/03 as I need to attend a party meeting in between these dates.

ASSISTANT: Let me know your boarding and landing airport codes?

USER: My boarding point is DTW and landing is at DFW.

ASSISTANT: Thank you for your details. There are no flights available with the given details.

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

ASSISTANT: Thank you for contacting us.