You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, may I know your good name?

USER: I am Elizabeth Walker.

ASSISTANT: How can I be of your help Elizabeth Walker?

USER: I want to book a direct flight to attend a board meeting at PHL on 06/07.

ASSISTANT: Ok, how much should the fare be?

USER: 5000 is my price.

ASSISTANT: May I know your source details?

USER: I would like to start from SEA.

ASSISTANT: When would you like to return?

USER: 06/09 will be my return.

ASSISTANT: Thank you for proving the details. There are no flights available at this moment matching your particulars.

USER: No issue. Thank you for your response.

ASSISTANT: Thank you for approaching us.