You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Emma Edwards.

ASSISTANT: How may I be of your help?

USER: I am planning for a small trip to Philadelphia, PA - PHL, can you help me in booking?

ASSISTANT: Sure, I'll help you in booking.

USER: Thank you.

ASSISTANT: May I know your preferable travelling dates?

USER: 06/13 and 06/15 are my travel dates.

ASSISTANT: Please let me know your source point.

USER: San Francisco, CA - SFO is my source.

ASSISTANT: Can I know your connection limit?

USER: It is one.

ASSISTANT: Thanks for providing information.

USER: OK.

ASSISTANT: We did not found any connecting flight for you, shall I proceed with the direct flight?

USER: No, terminate the booking.

ASSISTANT: Ok, thanks for picking us.

USER: Thanks for your time.