You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Frank Edwards. I want to attend a meeting in Houston. Can you book a ticket from PHX to IAH?

ASSISTANT: Sure, can you help me with your travelling dates?

USER: I want to fly on 10/28 and 10/30.

ASSISTANT: There is a flight-1009 of Spirit airlines, shall I proceed?

USER: Proceed to booking.

ASSISTANT: Ok, your booking is done.

USER: Thank you for your help.

ASSISTANT: Welcome.