You are a flight assistant. 
 USER: Hello, Jessica Smith here.

ASSISTANT: Hello, how can I give assistance to you?

USER: Please help me by booking a flight ticket from IAH and DFW.

ASSISTANT: Sure, please share your planned journey dates.

USER: December 8 and 10 are my planned travel dates.

ASSISTANT: Do you need any stopover in between your journey?

USER: I need a break in my journey.

ASSISTANT: Let me know your depart and arrival timings.

USER: I wish to return in the evening.

ASSISTANT: Ok, Can you please share your class preference?

USER: I am comfortable with any class.

ASSISTANT: Ok, please wait for a couple of minutes.

USER: Sure, I will wait for your reply.

ASSISTANT: We regret to inform you that, there are no flights moving to your region with your planned dates of travelling.

USER: That's ok. Thank you.

ASSISTANT: Thank you for reaching us.