You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I serve you?

USER: I am John Lee. I am planning to go for independence hall at Philadelphia, PHL. Can you please book a ticket on 02/05?

ASSISTANT: Sure, We are here to help you.

USER: Thank you.

ASSISTANT: From where you want to start your journey?

USER: San Francisco, SFO is my source code.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a halt in between my journey.

ASSISTANT: Kindly, Share your return date.

USER: I will return on 02/07.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Thanks for waiting. There is a flight 1003 in Delta airline and price 100 with a connection. Shall I proceed?

USER: You can proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you.