You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Can you help me in changing my recent reservation, as my is cancelled?

ASSISTANT: Sure, I am here to help you with this.

USER: Ok.

ASSISTANT: Can you please provide your name to check your reservation status?

USER: I am Jennifer Lewis.

ASSISTANT: Jennifer Lewis, I have found your reservation. Can you please provide your airport codes of journey?

USER: My source is DCA and destination is HOU.

ASSISTANT: May I know your planned dates of journey please?

USER: My trip dates are Jun 21-23.

ASSISTANT: Do you have any connection limit preference?

USER: I am looking for a stopover flight.

ASSISTANT: Do you have any other specifications for this trip?

USER: No.

ASSISTANT: American Airlines is providing connecting flight on this route with a ticket fare of 100 and flight departs at 10:00 hours and arrives at 17:00 hours, shall I book your ticket in this flight?

USER: You can book it.

ASSISTANT: Jennifer Lewis, your ticket is booked in flight number 1023.

USER: Thank you.

ASSISTANT: You are welcome and have a safe journey.