You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Christine Hall.

ASSISTANT: How can I guide you at this moment?

USER: I am planning to travel from HOU to IAH.

ASSISTANT: Sure, can you please provide your travelling dates to proceed further?

USER: My date of travelling is on 02/18 to 02/20.

ASSISTANT: Wait a moment please.

USER: Sure.

ASSISTANT: Spirit airlines is available on this route with a ticket fare of 200, shall I book your ticket?

USER: Proceed for booking.

ASSISTANT: Christine Hall, your ticket is booked with flight number 1000.

USER: Thanks.

ASSISTANT: Thank you, have a safe journey.