You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Nicholas Mitchell.

ASSISTANT: Nicholas Mitchell. How may I help you?

USER: I need to book a flight ticket from DFW to IAH, can you please book a flight ticket with fare 5000?

ASSISTANT: Sure, my pleasure. Can you provide me with the itinerary dates?

USER: Sure, my journey dates are May 22 and May 24.

ASSISTANT: Give me a moment please.

USER: Sure.

ASSISTANT: Hawaiian airlines with flight 1011 is providing service on your route with fare of 100.

USER: Please book the ticket.

ASSISTANT: Your flight is booked in the economy class with a single halt.

USER: Thank you for your service.

ASSISTANT: Thank you for approaching us.