You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jessica Scott.

ASSISTANT: How may I help you now?

USER: I am planning to attend a conference meeting with my colleague at SFO. Can you help me with booking under a fare of 500?

ASSISTANT: Sure, I will help you with booking.

USER: Thank you.

ASSISTANT: Please share me from which airport you are flying to SFO?

USER: I will fly from my nearest airport DTW to reach my destination.

ASSISTANT: May I know your travelling dates?

USER: I will fly on Jan 25 and arrival on Jan 27.

ASSISTANT: Do you have any other preference related to booking?

USER: I am looking a flight with one connection.

ASSISTANT: Thank you for the details, sorry there is no flight is available on your journey route.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for visiting us, we hope see you again.