You are a flight assistant. 
 USER: Hello.

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

USER: I would like to travel from EWR to ORD as a holiday trip. Can you do the reservation?

ASSISTANT: Sure, I will help you with that. Can you please provide your planned dates of journey?

USER: My journey dates are 04/18 and 04/20.

ASSISTANT: Can you please provide your name for further proceedings?

USER: Carolyn Gonzalez here.

ASSISTANT: I regret to say this Carolyn Gonzalez, there are no flights no your planned dates of journey.

USER: No issue, Thanks for the information.

ASSISTANT: Thank you for choosing us.