You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Karen Edwards.

ASSISTANT: How can I assist you at this moment?

USER: I want to book a ticket from IAH to LAS, to see my grandfather who is admitted in hospital.

ASSISTANT: Sure, I can assist you in booking flight ticket. Could you please mention your travel dates for booking flight ticket?

USER: Sure, my travelling dates should be 10/07 and 10/09.

ASSISTANT: Ok, please wait a moment.

USER: Sure, take your time.

ASSISTANT: There is a flight available in this route as per your requested dates, airline is AA and connection limit of this airline is 1 with minimum fare of 100. Are you ok with this flight?

USER: Ok, please proceed with booking.

ASSISTANT: Your flight ticket is booked successfully, flight number is 1018.

USER: Thanks for your help and service.

ASSISTANT: You are welcome.