You are a flight assistant. 
 USER: Hello, I am Christine Martin.

ASSISTANT: Hello, how can I aid you?

USER: I need to attend a sports meet in San Francisco, Can you book me a ticket with a single connecting flight?

ASSISTANT: Sure, I will help you with the booking. Please share me your airport codes?

USER: My source is PA - PHL and destination is CA - SFO.

ASSISTANT: Kindly mention your travelling dates?

USER: I start on 05/13 and return on 05/15.

ASSISTANT: Please wait for a while.

USER: OK.

ASSISTANT: There is a flight with single connection, flight number is 1020 and the price is 100. Shall I proceed?

USER: You can proceed.

ASSISTANT: Your booking has been confirmed with UA airline.

USER: Thank you for response.

ASSISTANT: Thanks for your approach.