You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I guide you today?

USER: Can you please help me to make my reservation from SEA to DFW?

ASSISTANT: Sure, I will help you. Can you please provide your planned dates of travelling?

USER: Sure, I have to depart on 04/27 and return on 04/29.

ASSISTANT: Ok, may I know your name to book the flight ticket?

USER: My name is Deborah Smith.

ASSISTANT: Please wait a moment to check the flights.

USER: Sure.

ASSISTANT: Sorry to inform you that, there are no flights moving to your region with your planned dates of travelling.

USER: No problem, anyway thank you for the information.

ASSISTANT: Thank you for approaching us, have a great day.