You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I want to book a flight ticket to San Francisco with price under 1000. Can you help me with it?

ASSISTANT: Sure, please provide me your journey dates?

USER: Journey codes are 04/18 and 04/20.

ASSISTANT: May I know your travel airport codes?

USER: Airport codes are PHX-SFO.

ASSISTANT: We found Spirit airline with a single connection. Flight number is 1001 with price of 100.

USER: Yes, you can proceed.

ASSISTANT:  May I know your name?

USER: My name is Jessica Perez.

ASSISTANT: Ok, your booking is done.

USER: Thanks for the help.