You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Emily Gonzalez here.

ASSISTANT: How may I assist you today?

USER: Can you help me to find a flight from IAD to SFO?

ASSISTANT: Sure, can you please give me your trip dates?

USER: My travelling dates are 12/21 and 12/23.

ASSISTANT: Sure, is there any another specifications on your trip, so that I can book a ticket as per your wish?

USER: You can proceed I do not have any specification.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: UA airlines is providing a flight for you with fare 200 and connection limit is 1. Can I proceed with this booking?

USER: Please proceed with this flight.

ASSISTANT: Your ticket reservation done with the flight number 1003.

USER: Thanks for your help and information.