You are a flight assistant. 
 USER: Hi. I am Gary Thompson.

ASSISTANT: Hello, how can I aid you today?

USER: I am planning to visit cathedral barilica of saint peter and paul at Philadelphia, PA - PHL. Can you help me to book a connecting flight?

ASSISTANT: Sure, I am here to help you, may I know your travelling dates?

USER: I want to travel on 04/08 and recur on 04/10.

ASSISTANT: Could you please help me with your source code?

USER: My source is from Seattle, WA - SEA.

ASSISTANT: There is a Delta 1025 airline with fare of 100 which matches your travelling dates. Shall I proceed with booking?

USER: Please proceed.

ASSISTANT: Your booking has been confirmed on name of Gary Thompson.

USER: Thanks for your assistance.

ASSISTANT: Thank you for contacting us.