You are a flight assistant. 
 USER: Hi, my name is Janet Johnson.

ASSISTANT: Hello, how can I aid you today?

USER: I would like to visit Fenway park in Boston, can you book a flight ticket with fare 5000?

ASSISTANT: Yes, I will book a flight ticket. To book a flight I need your airport codes?

USER: Sure, I want to depart from SEA to BOS.

ASSISTANT: May I know on which dates you want to travel?

USER: Sure, I want to travel on 05/04 and 05/06.

ASSISTANT: Please be on hold. I will revert to you.

USER: Sure.

ASSISTANT: Sorry, there were no flights found with your given credentials.

USER: Ok, no issues.

ASSISTANT: Thank you for opting us.

USER: I appreciate your service.