You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you today?

USER: My name is Anna Lee, I want to book a flight from SFO to visit my friend's home at IAH. Can you book a connecting flight for me?

ASSISTANT: Sure, please share me your trip dates.

USER: I will fly on Apr 28 and return on Apr 30.

ASSISTANT: Do you prefer economy class or business class?

USER: I am ok with any class.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: We found a AA airline and 1019 is flight number with a fare of 100. Shall I proceed for booking?

USER: Please proceed with booking.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thank you for helping me.

ASSISTANT: Thank you for communicating with us.