You are a flight assistant. 
 USER: Hi. I am Emma Mitchell.

ASSISTANT: Hello, how can I aid you?

USER: Please find a flight from DCA to IAH, to meet my sister on her birthday.

ASSISTANT: Sure, may I know your journey dates?

USER: Sure, my trip dates should be 03/19 and 03/21.

ASSISTANT: Give me a minute.

USER: Sure.

ASSISTANT: There is a connecting flight with number 1019 in airline UA, the fare is 100. Can I book it?

USER: Yes, please.

ASSISTANT: Your ticket is reserved, have a safe trip.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.