You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: I would like to prefer a flight to depart in the morning hours for my holiday trip to Houston. So can you book the flight ticket for me?

ASSISTANT: I am glad you have contacted us. I will help you. Please let me know with your name.

USER: I am Karen Roberts.

ASSISTANT: Please help me with your depart and arrival airport codes.

USER: The airport codes are from DEN to HOU.

ASSISTANT: Please help me with your planned travelling dates.

USER: The trip dates will be from May 31 to June 02.

ASSISTANT: Do you prefer to have a break in your journey?

USER: I would prefer a flight with a lay-by option.

ASSISTANT: Karen Roberts, do you have any other preferences in your journey?

USER: No.

ASSISTANT: Please allow me a minute.

USER: Sure.

ASSISTANT: We have a connecting flight operated by JetBlue airlines with a fare of 200 only. Are you ok with this offer?

USER: I am ok with the airlines. You can book it.

ASSISTANT: I have booked your ticket in flight-1011. It departs at 4:00 hours and arrives at 13:00 hours.

USER: Thank you.

ASSISTANT: You are welcome. Thank you for reaching us. Have a great journey.