You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Lisa Mitchell.

ASSISTANT: How may I guide you, Lisa?

USER: I am planning to travel from IAH to SFO to attend live concert at San Fransico, can you please help me with booking a flight ticket?

ASSISTANT: Sure, can you provide me your journey dates?

USER: Sure, my departure date is on 09/26 and the return date is on 09/28.

ASSISTANT: Delta airline is providing service on that route with the flight-1005, you need to pay 100 as your travelling charge. Is it ok for you?

USER: Yes, please proceed with booking.

ASSISTANT: Your ticket is confirmed, have a blast in concert.

USER: Thank you for very much.

ASSISTANT: Thank you for reaching us.