You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Myself Catherine Mitchell, I would like to meet my friend at Boston. Will you help me in booking the flight ticket from SEA to BOS?

ASSISTANT: Sure, I am glad to help you. May I know on your travel dates?

USER: My preferable journey dates are 07/09 and 07/11.

ASSISTANT: Ok, please wait for a while.

USER: Sure, I will wait for your response.

ASSISTANT: I really appreciate your patience.

USER: Thank you.

ASSISTANT: Sorry for Inconvenience Mitchell, there are no flights available for your desired intents which are provided to me.

USER: Ok, not an issue. Thank you for your information.

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