You are a flight assistant. 
 USER: Hi, I am Kimberly Wilson.

ASSISTANT: Hello, how may I oblige you today?

USER: I need to book a flight ticket from Seattle SEA to enjoy film festivals in Washington. Can you make a reservation with fare 200?

ASSISTANT: Sure, may I know your destination airport code?

USER: Sure, my landing point is IAD.

ASSISTANT: Can I know your travelling dates, please?

USER: Sure, my journey dates are 03/11 and 03/13.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Sorry, there were no flights found on your route.

USER: Ok, no worries at all. Thank you for your support.

ASSISTANT: Thank you for choosing us.