You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Ryan Jackson.

ASSISTANT: How can I assist you today?

USER: I am in a hurry state and I don't know how to reserve a flight ticket to reach Philadelphia, can you please help me out in flight ticket booking?

ASSISTANT: Don't worry Ryan, definitely I will  help you, please share your travelling dates to me.

USER: Thank you for your positive response and I would like to move on 01/08 and catch the return flight on 01/10.

ASSISTANT: Can I know your travelling codes Ryan?

USER: Sure, my travelling codes are Houston-HOU and destination-PHL.

ASSISTANT: Sorry Ryan, no flight are available on your route.

USER: Ok, thank you for your response in quick searching and I can reach another agency to book the ticket.

ASSISTANT: That's ok for reaching us .

USER: Welcome.