You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Catherine Collins.

ASSISTANT: How may I aid you?

USER: I  want to book a  flight ticket from TX-IAH to CO-DEN. Can you help me?

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

USER: 08/05 and 08/07 are my travelling dates.

ASSISTANT: Wait a moment please.

USER: Ok.

ASSISTANT: Delta airlines is available in your route with the ticket fare of 200, shall I proceed with the booking?

USER: You can reserve it for me.

ASSISTANT: Your ticket is booked with the flight-1002.

USER: Thank you for opting us.

ASSISTANT: Thank you for reaching us.