You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to visit Dallas, can you please book me a ticket from IAD to DFW?

ASSISTANT: Sure, kindly share your travel dates.

USER: I want to depart on Nov 04 and would like to return on Nov 06.

ASSISTANT: Do you have any connection preference?

USER: I prefer single connection flight for this trip.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say, no flights found  with your requirement.

USER: Ok, not an issue. I will find any alternate for this trip.

ASSISTANT: May I know your name?

USER: My name is Elizabeth Moore.

ASSISTANT: Thanks for reaching us.

USER: Thank you for your information.