You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I want to met my grand parents on their wedding anniversary. Can you help me for that one?

ASSISTANT: Sure, I will help you in flight ticket booking. Tell me your airport codes please.

USER: My planned travel airport codes are LAS to SFO, can you book a ticket on that route?

ASSISTANT: Now share your travel dates please?

USER: My planned travel dates are 12/21 and 12/23.

ASSISTANT: May I know your name please?

USER: Sure, Frank Lee here.

ASSISTANT: May I know your connection limit please?

USER: I want a flight with maximum connection of 1.

ASSISTANT: Do you have any other preferences?

USER: No more, thank you.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Thanks for your patience. I have found a normal-cost airline that is Delta airlines which flies with one connection.

USER: Yes, you can proceed with that booking.

ASSISTANT: Yes, I have confirmed your flight ticket in flight number 1029.

USER: Thank you for the booking.

ASSISTANT: Thank you.