You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you today?

USER: Sandra Collins here. Please reserve a flight ticket from IAD to SFO, can you help me?

ASSISTANT: Sure, please mention your travelling dates.

USER: Ok, my planned trip dates are from 03/25 to 03/27.

ASSISTANT: Please  hold a moment.

USER: Sure, take your time.

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

USER: Please book my ticket.

ASSISTANT: Your ticket is confirmed with the flight number 1005.

USER: Thank you so much.

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