You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Christopher Miller, can you help me to book a flight from LGA to IAH?

ASSISTANT: I am happy to help you, may I know your journey dates?

USER: My travelling dates are June 04 and 06.

ASSISTANT: May I know your price limit?

USER: 500 is my price limit.

ASSISTANT: There is a connecting flight-1022 with price 100, would you like me to proceed?

USER: Proceed with my booking.

ASSISTANT: Ok, booking is done on UA airlines.

USER: Thank you.

ASSISTANT: Welcome Christopher Miller.