You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I help you?

USER: I am Sandra Campbell. I am a volunteer at Saving Grace Orphanage, Philadelphia. Can you help me out in booking a ticket?

ASSISTANT: Sure, Can you share me your travelling dates?

USER: I want to travel on 08/29, and need to catch return flight on 08/31.

ASSISTANT: May I know your journey airport codes?

USER: I need to leave from my nearest airport ORD to reach PHL.

ASSISTANT: Ok, wait for some time.

USER: Sure.

ASSISTANT: We found UA airline with connecting flight and number 1021 fare of 100. Shall I proceed for booking?

USER: I need a direct flight. So do not proceed with the booking.

ASSISTANT: Ok, Thans for choosing us.

USER: Thanks for the information.