You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you today?

USER: Can you please help me in booking a flight from SFO to PHL?

ASSISTANT: Sure, can you please share your preferable journey dates?

USER: My preferable dates are on Mar 5th to 7th.

ASSISTANT: May I know your name please?

USER: Sure, I am Andrew Walker.

ASSISTANT: Do you have any connection limit?

USER: I am okay with any connection.

ASSISTANT: Is there any other specifications?

USER: No.

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

USER: No issues, thank you.

ASSISTANT: Thank you for reaching us.