You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

USER: Can you please reserve me a flight ticket from BOS to SFO?

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

USER: My trip dates are 08/13 - 08/15.

ASSISTANT: Do you require any stopovers in your journey?

USER: I need a single connection.

ASSISTANT: Do you have any other requirements?

USER: I prefer an economy class.

ASSISTANT: Please share your name.

USER: Christine Perez.

ASSISTANT: Sorry to inform you that unfortunately there is no flights available by the given details.

USER: No issues, thank you.

ASSISTANT: Thank you.