You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you please book me a flight ticket from SFO to PHL to meet my family?

ASSISTANT: Sure, please provide your trip dates.

USER: I have planned to travel on Oct 16th and return on Oct 18th.

ASSISTANT: Do you need any connection limit?

USER: I like connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No, thanks.

ASSISTANT: May I know your name?

USER: Susan Turner.

ASSISTANT: There are no flights available on your required dates.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for opting us.