You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you today?

USER: I am David Clark here, I want to reserve my ticket from ORD to SFO, can you please help me?

ASSISTANT: Can you please mention your travelling dates.

USER: Sure, my planned dates of journey are from 01/25 to 01/27.

ASSISTANT: Please wait a moment.

USER: Sure, take your time.

ASSISTANT: Here is a flight with one connection and the price is 100, can I proceed in booking?

USER: Ok, you can book it.

ASSISTANT: Your ticket has been confirmed with Frontier airlines and flight number 1004.

USER: Thank you for your help in booking my ticket.

ASSISTANT: Thank you for choosing our service, have a safe journey ahead.