You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I guide you for today?

USER: Mary Miller here. Please search flights on these routes PHL to IAD?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: Ok, I am planning to go on 11/04 and 11/06.

ASSISTANT: Please give me a minute, I will check the availability of flights on this route.

USER: Ok, take your time.

ASSISTANT: There is a flight with ticket fare 100 in UA airlines. Is it ok for you?

USER: Please reserve the flight ticket.

ASSISTANT: Your booking is confirmed with flight number 1015.

USER: Thank you for helping me.

ASSISTANT: Thank you for contacting us, have a nice day.