You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am Sarah Clark. I am planning to surprise my grand mother on her 60th birthday at Denver, DEN. Can you please book a ticket on 08/05?

ASSISTANT: Sure, we are here to help you for booking.

USER: Thank you.

ASSISTANT: May I know your return date?

USER: Return is on 08/07.

ASSISTANT: Ok, please share your source point.

USER: Boarding point is Houston, IAH.

ASSISTANT: Are you Ok with connected flight?

USER: Yes, I need a connecting flight.

ASSISTANT: Thanks for your information, we are glad to inform you that we found a flight in 1011 Frontier airline with a fare of 100.

USER: You can proceed.

ASSISTANT: Sure, your booking has been processed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.