You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I guide you today?

USER: I am Daniel Hall, can you help me to book a flight from OAK to BOS?

ASSISTANT: Sure, I will help you with that. Can you please share your preferable journey dates?

USER: My travelling dates are 08/30 and 09/01.

ASSISTANT: Please wait for a minute.

USER: Ok.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: No issues, thank you for your time.

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