You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Sarah Lopez.

ASSISTANT: How may I assist you?

USER: Can you please book a flight ticket from IAH to LAX?

ASSISTANT: Sure, I am here to help you out. May I know your travelling dates please?

USER: Sure, I need to travel on dates of 06/25 and 06/27.

ASSISTANT: Wait a moment please.

USER: Sure, take your time.

ASSISTANT: Southwest airlines is available in your route with the ticket fare of 100, shall I proceed with the booking?

USER: That is fine, please proceed with booking.

ASSISTANT: Your ticket is booked with the flight-1021.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.